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Finding the Fourth Proportional to 302,437.80, 453,462.30 and 125,015.40

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Solution

The fourth proportional to 302,437.80, 453,462.30 and 125,015.40 is: 187,442.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,437.80 : 453,462.30 = 125,015.40 : x
  2. Step 2: Convert to fraction form
    302,437.80/453,462.30 = 125,015.40/x
  3. Step 3: Cross multiply
    302,437.80x = 453,462.30 × 125,015.40
  4. Step 4: Simplify right side
    302,437.80x = 56,689,770,819.42
  5. Step 5: Solve for x
    x = 56,689,770,819.42/302,437.80
  6. Step 6: Final answer
    x = 187,442.74

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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.