Home / 389,215.38-583,641.63-202,176.66

Finding the Fourth Proportional to 389,215.38, 583,641.63 and 202,176.66

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Solution

The fourth proportional to 389,215.38, 583,641.63 and 202,176.66 is: 303,170.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,215.38 : 583,641.63 = 202,176.66 : x
  2. Step 2: Convert to fraction form
    389,215.38/583,641.63 = 202,176.66/x
  3. Step 3: Cross multiply
    389,215.38x = 583,641.63 × 202,176.66
  4. Step 4: Simplify right side
    389,215.38x = 117,998,715,390.36
  5. Step 5: Solve for x
    x = 117,998,715,390.36/389,215.38
  6. Step 6: Final answer
    x = 303,170.74

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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.