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Finding the Fourth Proportional to 361,504.10, 542,256.15 and 291,520.10

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Solution

The fourth proportional to 361,504.10, 542,256.15 and 291,520.10 is: 437,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,504.10 : 542,256.15 = 291,520.10 : x
  2. Step 2: Convert to fraction form
    361,504.10/542,256.15 = 291,520.10/x
  3. Step 3: Cross multiply
    361,504.10x = 542,256.15 × 291,520.10
  4. Step 4: Simplify right side
    361,504.10x = 158,078,567,073.62
  5. Step 5: Solve for x
    x = 158,078,567,073.62/361,504.10
  6. Step 6: Final answer
    x = 437,280.15

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1.5x scale

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.