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Finding the Fourth Proportional to 280,647.68, 418,924.24 and 245,217.92

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Solution

The fourth proportional to 280,647.68, 418,924.24 and 245,217.92 is: 366,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,647.68 : 418,924.24 = 245,217.92 : x
  2. Step 2: Convert to fraction form
    280,647.68/418,924.24 = 245,217.92/x
  3. Step 3: Cross multiply
    280,647.68x = 418,924.24 × 245,217.92
  4. Step 4: Simplify right side
    280,647.68x = 102,727,730,770.38
  5. Step 5: Solve for x
    x = 102,727,730,770.38/280,647.68
  6. Step 6: Final answer
    x = 366,038.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.