Home / 389,655.72-583,966.87-200,108.43

Finding the Fourth Proportional to 389,655.72, 583,966.87 and 200,108.43

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Solution

The fourth proportional to 389,655.72, 583,966.87 and 200,108.43 is: 299,897.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,655.72 : 583,966.87 = 200,108.43 : x
  2. Step 2: Convert to fraction form
    389,655.72/583,966.87 = 200,108.43/x
  3. Step 3: Cross multiply
    389,655.72x = 583,966.87 × 200,108.43
  4. Step 4: Simplify right side
    389,655.72x = 116,856,693,527.71
  5. Step 5: Solve for x
    x = 116,856,693,527.71/389,655.72
  6. Step 6: Final answer
    x = 299,897.29

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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.