Home / 285,388.32-393,831.05-158,061.18

Finding the Fourth Proportional to 285,388.32, 393,831.05 and 158,061.18

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Solution

The fourth proportional to 285,388.32, 393,831.05 and 158,061.18 is: 218,121.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,388.32 : 393,831.05 = 158,061.18 : x
  2. Step 2: Convert to fraction form
    285,388.32/393,831.05 = 158,061.18/x
  3. Step 3: Cross multiply
    285,388.32x = 393,831.05 × 158,061.18
  4. Step 4: Simplify right side
    285,388.32x = 62,249,399,693.33
  5. Step 5: Solve for x
    x = 62,249,399,693.33/285,388.32
  6. Step 6: Final answer
    x = 218,121.75

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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.