Home / 386,308.24-579,545.45-130,166.30

Finding the Fourth Proportional to 386,308.24, 579,545.45 and 130,166.30

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Solution

The fourth proportional to 386,308.24, 579,545.45 and 130,166.30 is: 195,277.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,308.24 : 579,545.45 = 130,166.30 : x
  2. Step 2: Convert to fraction form
    386,308.24/579,545.45 = 130,166.30/x
  3. Step 3: Cross multiply
    386,308.24x = 579,545.45 × 130,166.30
  4. Step 4: Simplify right side
    386,308.24x = 75,437,286,908.34
  5. Step 5: Solve for x
    x = 75,437,286,908.34/386,308.24
  6. Step 6: Final answer
    x = 195,277.45

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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.