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Finding the Fourth Proportional to 302,479.60, 453,431.40 and 112,889.20

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Solution

The fourth proportional to 302,479.60, 453,431.40 and 112,889.20 is: 169,226.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,479.60 : 453,431.40 = 112,889.20 : x
  2. Step 2: Convert to fraction form
    302,479.60/453,431.40 = 112,889.20/x
  3. Step 3: Cross multiply
    302,479.60x = 453,431.40 × 112,889.20
  4. Step 4: Simplify right side
    302,479.60x = 51,187,508,000.88
  5. Step 5: Solve for x
    x = 51,187,508,000.88/302,479.60
  6. Step 6: Final answer
    x = 169,226.31

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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.