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Finding the Fourth Proportional to 230,715.32, 346,070.80 and 72,943.76

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Solution

The fourth proportional to 230,715.32, 346,070.80 and 72,943.76 is: 109,414.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,715.32 : 346,070.80 = 72,943.76 : x
  2. Step 2: Convert to fraction form
    230,715.32/346,070.80 = 72,943.76/x
  3. Step 3: Cross multiply
    230,715.32x = 346,070.80 × 72,943.76
  4. Step 4: Simplify right side
    230,715.32x = 25,243,705,378.21
  5. Step 5: Solve for x
    x = 25,243,705,378.21/230,715.32
  6. Step 6: Final answer
    x = 109,414.95

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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.