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Finding the Fourth Proportional to 352,005.60, 527,086.80 and 258,002.40

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Solution

The fourth proportional to 352,005.60, 527,086.80 and 258,002.40 is: 386,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,005.60 : 527,086.80 = 258,002.40 : x
  2. Step 2: Convert to fraction form
    352,005.60/527,086.80 = 258,002.40/x
  3. Step 3: Cross multiply
    352,005.60x = 527,086.80 × 258,002.40
  4. Step 4: Simplify right side
    352,005.60x = 135,989,659,408.32
  5. Step 5: Solve for x
    x = 135,989,659,408.32/352,005.60
  6. Step 6: Final answer
    x = 386,328.11

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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.