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Finding the Fourth Proportional to 325,298.10, 487,947.15 and 88,640.40

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Solution

The fourth proportional to 325,298.10, 487,947.15 and 88,640.40 is: 132,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,298.10 : 487,947.15 = 88,640.40 : x
  2. Step 2: Convert to fraction form
    325,298.10/487,947.15 = 88,640.40/x
  3. Step 3: Cross multiply
    325,298.10x = 487,947.15 × 88,640.40
  4. Step 4: Simplify right side
    325,298.10x = 43,251,830,554.86
  5. Step 5: Solve for x
    x = 43,251,830,554.86/325,298.10
  6. Step 6: Final answer
    x = 132,960.60

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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.