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Finding the Fourth Proportional to 316,049.64, 436,267.10 and 207,160.98

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Solution

The fourth proportional to 316,049.64, 436,267.10 and 207,160.98 is: 285,959.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,049.64 : 436,267.10 = 207,160.98 : x
  2. Step 2: Convert to fraction form
    316,049.64/436,267.10 = 207,160.98/x
  3. Step 3: Cross multiply
    316,049.64x = 436,267.10 × 207,160.98
  4. Step 4: Simplify right side
    316,049.64x = 90,377,519,977.76
  5. Step 5: Solve for x
    x = 90,377,519,977.76/316,049.64
  6. Step 6: Final answer
    x = 285,959.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.