Home / 314,966.96-434,831.28-218,311.28

Finding the Fourth Proportional to 314,966.96, 434,831.28 and 218,311.28

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Solution

The fourth proportional to 314,966.96, 434,831.28 and 218,311.28 is: 301,392.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,966.96 : 434,831.28 = 218,311.28 : x
  2. Step 2: Convert to fraction form
    314,966.96/434,831.28 = 218,311.28/x
  3. Step 3: Cross multiply
    314,966.96x = 434,831.28 × 218,311.28
  4. Step 4: Simplify right side
    314,966.96x = 94,928,573,320.84
  5. Step 5: Solve for x
    x = 94,928,573,320.84/314,966.96
  6. Step 6: Final answer
    x = 301,392.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.