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Finding the Fourth Proportional to 261,404.35, 392,110.40 and 101,489.54

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Solution

The fourth proportional to 261,404.35, 392,110.40 and 101,489.54 is: 152,235.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,404.35 : 392,110.40 = 101,489.54 : x
  2. Step 2: Convert to fraction form
    261,404.35/392,110.40 = 101,489.54/x
  3. Step 3: Cross multiply
    261,404.35x = 392,110.40 × 101,489.54
  4. Step 4: Simplify right side
    261,404.35x = 39,795,104,598.04
  5. Step 5: Solve for x
    x = 39,795,104,598.04/261,404.35
  6. Step 6: Final answer
    x = 152,235.82

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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.