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Finding the Fourth Proportional to 230,348.30, 317,891.50 and 134,885.76

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Solution

The fourth proportional to 230,348.30, 317,891.50 and 134,885.76 is: 186,148.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,348.30 : 317,891.50 = 134,885.76 : x
  2. Step 2: Convert to fraction form
    230,348.30/317,891.50 = 134,885.76/x
  3. Step 3: Cross multiply
    230,348.30x = 317,891.50 × 134,885.76
  4. Step 4: Simplify right side
    230,348.30x = 42,879,036,575.04
  5. Step 5: Solve for x
    x = 42,879,036,575.04/230,348.30
  6. Step 6: Final answer
    x = 186,148.70

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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.