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Finding the Fourth Proportional to 487,988.29, 730,916.37 and 202,814.22

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Solution

The fourth proportional to 487,988.29, 730,916.37 and 202,814.22 is: 303,778.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,988.29 : 730,916.37 = 202,814.22 : x
  2. Step 2: Convert to fraction form
    487,988.29/730,916.37 = 202,814.22/x
  3. Step 3: Cross multiply
    487,988.29x = 730,916.37 × 202,814.22
  4. Step 4: Simplify right side
    487,988.29x = 148,240,233,466.78
  5. Step 5: Solve for x
    x = 148,240,233,466.78/487,988.29
  6. Step 6: Final answer
    x = 303,778.26

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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.