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Finding the Fourth Proportional to 478,325.25, 717,520.68 and 158,476.50

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Solution

The fourth proportional to 478,325.25, 717,520.68 and 158,476.50 is: 237,725.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,325.25 : 717,520.68 = 158,476.50 : x
  2. Step 2: Convert to fraction form
    478,325.25/717,520.68 = 158,476.50/x
  3. Step 3: Cross multiply
    478,325.25x = 717,520.68 × 158,476.50
  4. Step 4: Simplify right side
    478,325.25x = 113,710,166,044.02
  5. Step 5: Solve for x
    x = 113,710,166,044.02/478,325.25
  6. Step 6: Final answer
    x = 237,725.62

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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.