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Finding the Fourth Proportional to 292,904.10, 439,356.15 and 271,908.90

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Solution

The fourth proportional to 292,904.10, 439,356.15 and 271,908.90 is: 407,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,904.10 : 439,356.15 = 271,908.90 : x
  2. Step 2: Convert to fraction form
    292,904.10/439,356.15 = 271,908.90/x
  3. Step 3: Cross multiply
    292,904.10x = 439,356.15 × 271,908.90
  4. Step 4: Simplify right side
    292,904.10x = 119,464,847,454.74
  5. Step 5: Solve for x
    x = 119,464,847,454.74/292,904.10
  6. Step 6: Final answer
    x = 407,863.35

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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.