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Finding the Fourth Proportional to 399,275.60, 551,092.92 and 263,333.84

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Solution

The fourth proportional to 399,275.60, 551,092.92 and 263,333.84 is: 363,461.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,275.60 : 551,092.92 = 263,333.84 : x
  2. Step 2: Convert to fraction form
    399,275.60/551,092.92 = 263,333.84/x
  3. Step 3: Cross multiply
    399,275.60x = 551,092.92 × 263,333.84
  4. Step 4: Simplify right side
    399,275.60x = 145,121,414,820.41
  5. Step 5: Solve for x
    x = 145,121,414,820.41/399,275.60
  6. Step 6: Final answer
    x = 363,461.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.