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Finding the Fourth Proportional to 387,430.62, 534,659.34 and 234,466.98

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Solution

The fourth proportional to 387,430.62, 534,659.34 and 234,466.98 is: 323,567.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,430.62 : 534,659.34 = 234,466.98 : x
  2. Step 2: Convert to fraction form
    387,430.62/534,659.34 = 234,466.98/x
  3. Step 3: Cross multiply
    387,430.62x = 534,659.34 × 234,466.98
  4. Step 4: Simplify right side
    387,430.62x = 125,359,960,778.59
  5. Step 5: Solve for x
    x = 125,359,960,778.59/387,430.62
  6. Step 6: Final answer
    x = 323,567.51

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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.