Home / 391,128.14-586,939.01-166,488.22

Finding the Fourth Proportional to 391,128.14, 586,939.01 and 166,488.22

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Solution

The fourth proportional to 391,128.14, 586,939.01 and 166,488.22 is: 249,837.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,128.14 : 586,939.01 = 166,488.22 : x
  2. Step 2: Convert to fraction form
    391,128.14/586,939.01 = 166,488.22/x
  3. Step 3: Cross multiply
    391,128.14x = 586,939.01 × 166,488.22
  4. Step 4: Simplify right side
    391,128.14x = 97,718,428,088.77
  5. Step 5: Solve for x
    x = 97,718,428,088.77/391,128.14
  6. Step 6: Final answer
    x = 249,837.38

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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.