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Finding the Fourth Proportional to 387,235.61, 534,462.02 and 247,444.85

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Solution

The fourth proportional to 387,235.61, 534,462.02 and 247,444.85 is: 341,523.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,235.61 : 534,462.02 = 247,444.85 : x
  2. Step 2: Convert to fraction form
    387,235.61/534,462.02 = 247,444.85/x
  3. Step 3: Cross multiply
    387,235.61x = 534,462.02 × 247,444.85
  4. Step 4: Simplify right side
    387,235.61x = 132,249,874,589.21
  5. Step 5: Solve for x
    x = 132,249,874,589.21/387,235.61
  6. Step 6: Final answer
    x = 341,523.02

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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.