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Finding the Fourth Proportional to 478,448.17, 717,737.86 and 141,515.30

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Solution

The fourth proportional to 478,448.17, 717,737.86 and 141,515.30 is: 212,292.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,448.17 : 717,737.86 = 141,515.30 : x
  2. Step 2: Convert to fraction form
    478,448.17/717,737.86 = 141,515.30/x
  3. Step 3: Cross multiply
    478,448.17x = 717,737.86 × 141,515.30
  4. Step 4: Simplify right side
    478,448.17x = 101,570,890,550.50
  5. Step 5: Solve for x
    x = 101,570,890,550.50/478,448.17
  6. Step 6: Final answer
    x = 212,292.36

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.