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Finding the Fourth Proportional to 424,484.31, 585,831.27 and 243,220.29

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Solution

The fourth proportional to 424,484.31, 585,831.27 and 243,220.29 is: 335,668.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,484.31 : 585,831.27 = 243,220.29 : x
  2. Step 2: Convert to fraction form
    424,484.31/585,831.27 = 243,220.29/x
  3. Step 3: Cross multiply
    424,484.31x = 585,831.27 × 243,220.29
  4. Step 4: Simplify right side
    424,484.31x = 142,486,051,380.47
  5. Step 5: Solve for x
    x = 142,486,051,380.47/424,484.31
  6. Step 6: Final answer
    x = 335,668.59

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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.