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Finding the Fourth Proportional to 438,002.90, 656,812.35 and 201,266.90

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Solution

The fourth proportional to 438,002.90, 656,812.35 and 201,266.90 is: 301,812.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,002.90 : 656,812.35 = 201,266.90 : x
  2. Step 2: Convert to fraction form
    438,002.90/656,812.35 = 201,266.90/x
  3. Step 3: Cross multiply
    438,002.90x = 656,812.35 × 201,266.90
  4. Step 4: Simplify right side
    438,002.90x = 132,194,585,566.22
  5. Step 5: Solve for x
    x = 132,194,585,566.22/438,002.90
  6. Step 6: Final answer
    x = 301,812.12

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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.