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Finding the Fourth Proportional to 657,979.24, 986,965.60 and 159,343.24

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Solution

The fourth proportional to 657,979.24, 986,965.60 and 159,343.24 is: 239,014.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,979.24 : 986,965.60 = 159,343.24 : x
  2. Step 2: Convert to fraction form
    657,979.24/986,965.60 = 159,343.24/x
  3. Step 3: Cross multiply
    657,979.24x = 986,965.60 × 159,343.24
  4. Step 4: Simplify right side
    657,979.24x = 157,266,296,472.54
  5. Step 5: Solve for x
    x = 157,266,296,472.54/657,979.24
  6. Step 6: Final answer
    x = 239,014.07

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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.