Home / 426,086.49-639,353.29-160,030.65

Finding the Fourth Proportional to 426,086.49, 639,353.29 and 160,030.65

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Solution

The fourth proportional to 426,086.49, 639,353.29 and 160,030.65 is: 240,129.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,086.49 : 639,353.29 = 160,030.65 : x
  2. Step 2: Convert to fraction form
    426,086.49/639,353.29 = 160,030.65/x
  3. Step 3: Cross multiply
    426,086.49x = 639,353.29 × 160,030.65
  4. Step 4: Simplify right side
    426,086.49x = 102,316,122,578.34
  5. Step 5: Solve for x
    x = 102,316,122,578.34/426,086.49
  6. Step 6: Final answer
    x = 240,129.94

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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.