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Finding the Fourth Proportional to 261,010.60, 390,641.10 and 182,278.60

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Solution

The fourth proportional to 261,010.60, 390,641.10 and 182,278.60 is: 272,806.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,010.60 : 390,641.10 = 182,278.60 : x
  2. Step 2: Convert to fraction form
    261,010.60/390,641.10 = 182,278.60/x
  3. Step 3: Cross multiply
    261,010.60x = 390,641.10 × 182,278.60
  4. Step 4: Simplify right side
    261,010.60x = 71,205,512,810.46
  5. Step 5: Solve for x
    x = 71,205,512,810.46/261,010.60
  6. Step 6: Final answer
    x = 272,806.98

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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.