Home / 631,146.32-946,719.48-157,831.68

Finding the Fourth Proportional to 631,146.32, 946,719.48 and 157,831.68

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Solution

The fourth proportional to 631,146.32, 946,719.48 and 157,831.68 is: 236,747.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,146.32 : 946,719.48 = 157,831.68 : x
  2. Step 2: Convert to fraction form
    631,146.32/946,719.48 = 157,831.68/x
  3. Step 3: Cross multiply
    631,146.32x = 946,719.48 × 157,831.68
  4. Step 4: Simplify right side
    631,146.32x = 149,422,330,159.19
  5. Step 5: Solve for x
    x = 149,422,330,159.19/631,146.32
  6. Step 6: Final answer
    x = 236,747.53

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.