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Finding the Fourth Proportional to 325,045.60, 487,856.40 and 191,759.20

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Solution

The fourth proportional to 325,045.60, 487,856.40 and 191,759.20 is: 287,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,045.60 : 487,856.40 = 191,759.20 : x
  2. Step 2: Convert to fraction form
    325,045.60/487,856.40 = 191,759.20/x
  3. Step 3: Cross multiply
    325,045.60x = 487,856.40 × 191,759.20
  4. Step 4: Simplify right side
    325,045.60x = 93,550,952,978.88
  5. Step 5: Solve for x
    x = 93,550,952,978.88/325,045.60
  6. Step 6: Final answer
    x = 287,808.70

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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.