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Finding the Fourth Proportional to 354,856.80, 532,285.20 and 144,645.60

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Solution

The fourth proportional to 354,856.80, 532,285.20 and 144,645.60 is: 216,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,856.80 : 532,285.20 = 144,645.60 : x
  2. Step 2: Convert to fraction form
    354,856.80/532,285.20 = 144,645.60/x
  3. Step 3: Cross multiply
    354,856.80x = 532,285.20 × 144,645.60
  4. Step 4: Simplify right side
    354,856.80x = 76,992,712,125.12
  5. Step 5: Solve for x
    x = 76,992,712,125.12/354,856.80
  6. Step 6: Final answer
    x = 216,968.40

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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.