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Finding the Fourth Proportional to 359,480, 539,232.96 and 134,817.60

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Solution

The fourth proportional to 359,480, 539,232.96 and 134,817.60 is: 202,231.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,480 : 539,232.96 = 134,817.60 : x
  2. Step 2: Convert to fraction form
    359,480/539,232.96 = 134,817.60/x
  3. Step 3: Cross multiply
    359,480x = 539,232.96 × 134,817.60
  4. Step 4: Simplify right side
    359,480x = 72,698,093,508.10
  5. Step 5: Solve for x
    x = 72,698,093,508.10/359,480
  6. Step 6: Final answer
    x = 202,231.26

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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.