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Finding the Fourth Proportional to 306,309.96, 459,065.61 and 156,423.92

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Solution

The fourth proportional to 306,309.96, 459,065.61 and 156,423.92 is: 234,431.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,309.96 : 459,065.61 = 156,423.92 : x
  2. Step 2: Convert to fraction form
    306,309.96/459,065.61 = 156,423.92/x
  3. Step 3: Cross multiply
    306,309.96x = 459,065.61 × 156,423.92
  4. Step 4: Simplify right side
    306,309.96x = 71,808,839,958.06
  5. Step 5: Solve for x
    x = 71,808,839,958.06/306,309.96
  6. Step 6: Final answer
    x = 234,431.95

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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.