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Finding the Fourth Proportional to 324,117.30, 485,139.15 and 299,234.10

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Solution

The fourth proportional to 324,117.30, 485,139.15 and 299,234.10 is: 447,893.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,117.30 : 485,139.15 = 299,234.10 : x
  2. Step 2: Convert to fraction form
    324,117.30/485,139.15 = 299,234.10/x
  3. Step 3: Cross multiply
    324,117.30x = 485,139.15 × 299,234.10
  4. Step 4: Simplify right side
    324,117.30x = 145,170,176,925.02
  5. Step 5: Solve for x
    x = 145,170,176,925.02/324,117.30
  6. Step 6: Final answer
    x = 447,893.95

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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.