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Finding the Fourth Proportional to 150,965.82, 208,328.31 and 86,432.91

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Solution

The fourth proportional to 150,965.82, 208,328.31 and 86,432.91 is: 119,274.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,965.82 : 208,328.31 = 86,432.91 : x
  2. Step 2: Convert to fraction form
    150,965.82/208,328.31 = 86,432.91/x
  3. Step 3: Cross multiply
    150,965.82x = 208,328.31 × 86,432.91
  4. Step 4: Simplify right side
    150,965.82x = 18,006,422,068.68
  5. Step 5: Solve for x
    x = 18,006,422,068.68/150,965.82
  6. Step 6: Final answer
    x = 119,274.83

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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.