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Finding the Fourth Proportional to 150,323.84, 207,464.39 and 86,663.91

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Solution

The fourth proportional to 150,323.84, 207,464.39 and 86,663.91 is: 119,606.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,323.84 : 207,464.39 = 86,663.91 : x
  2. Step 2: Convert to fraction form
    150,323.84/207,464.39 = 86,663.91/x
  3. Step 3: Cross multiply
    150,323.84x = 207,464.39 × 86,663.91
  4. Step 4: Simplify right side
    150,323.84x = 17,979,674,789.85
  5. Step 5: Solve for x
    x = 17,979,674,789.85/150,323.84
  6. Step 6: Final answer
    x = 119,606.28

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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.