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Finding the Fourth Proportional to 309,432.92, 464,207.70 and 220,465.76

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Solution

The fourth proportional to 309,432.92, 464,207.70 and 220,465.76 is: 330,740.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,432.92 : 464,207.70 = 220,465.76 : x
  2. Step 2: Convert to fraction form
    309,432.92/464,207.70 = 220,465.76/x
  3. Step 3: Cross multiply
    309,432.92x = 464,207.70 × 220,465.76
  4. Step 4: Simplify right side
    309,432.92x = 102,341,903,378.35
  5. Step 5: Solve for x
    x = 102,341,903,378.35/309,432.92
  6. Step 6: Final answer
    x = 330,740.19

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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.