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Finding the Fourth Proportional to 173,449.91, 239,434.65 and 105,488.71

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Solution

The fourth proportional to 173,449.91, 239,434.65 and 105,488.71 is: 145,619.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,449.91 : 239,434.65 = 105,488.71 : x
  2. Step 2: Convert to fraction form
    173,449.91/239,434.65 = 105,488.71/x
  3. Step 3: Cross multiply
    173,449.91x = 239,434.65 × 105,488.71
  4. Step 4: Simplify right side
    173,449.91x = 25,257,652,357.80
  5. Step 5: Solve for x
    x = 25,257,652,357.80/173,449.91
  6. Step 6: Final answer
    x = 145,619.29

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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.