Home / 386,437.23-579,582.03-120,200.96

Finding the Fourth Proportional to 386,437.23, 579,582.03 and 120,200.96

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Solution

The fourth proportional to 386,437.23, 579,582.03 and 120,200.96 is: 180,278.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,437.23 : 579,582.03 = 120,200.96 : x
  2. Step 2: Convert to fraction form
    386,437.23/579,582.03 = 120,200.96/x
  3. Step 3: Cross multiply
    386,437.23x = 579,582.03 × 120,200.96
  4. Step 4: Simplify right side
    386,437.23x = 69,666,318,304.46
  5. Step 5: Solve for x
    x = 69,666,318,304.46/386,437.23
  6. Step 6: Final answer
    x = 180,278.48

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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.