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Finding the Fourth Proportional to 434,575.20, 651,862.80 and 247,951.20

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Solution

The fourth proportional to 434,575.20, 651,862.80 and 247,951.20 is: 371,926.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,575.20 : 651,862.80 = 247,951.20 : x
  2. Step 2: Convert to fraction form
    434,575.20/651,862.80 = 247,951.20/x
  3. Step 3: Cross multiply
    434,575.20x = 651,862.80 × 247,951.20
  4. Step 4: Simplify right side
    434,575.20x = 161,630,163,495.36
  5. Step 5: Solve for x
    x = 161,630,163,495.36/434,575.20
  6. Step 6: Final answer
    x = 371,926.80

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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.