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Finding the Fourth Proportional to 359,779.46, 539,570.61 and 135,122.49

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Solution

The fourth proportional to 359,779.46, 539,570.61 and 135,122.49 is: 202,646.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,779.46 : 539,570.61 = 135,122.49 : x
  2. Step 2: Convert to fraction form
    359,779.46/539,570.61 = 135,122.49/x
  3. Step 3: Cross multiply
    359,779.46x = 539,570.61 × 135,122.49
  4. Step 4: Simplify right side
    359,779.46x = 72,908,124,354.02
  5. Step 5: Solve for x
    x = 72,908,124,354.02/359,779.46
  6. Step 6: Final answer
    x = 202,646.71

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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.