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Finding the Fourth Proportional to 367,000.10, 550,500.15 and 278,426.60

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Solution

The fourth proportional to 367,000.10, 550,500.15 and 278,426.60 is: 417,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,000.10 : 550,500.15 = 278,426.60 : x
  2. Step 2: Convert to fraction form
    367,000.10/550,500.15 = 278,426.60/x
  3. Step 3: Cross multiply
    367,000.10x = 550,500.15 × 278,426.60
  4. Step 4: Simplify right side
    367,000.10x = 153,273,885,063.99
  5. Step 5: Solve for x
    x = 153,273,885,063.99/367,000.10
  6. Step 6: Final answer
    x = 417,639.90

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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.