Home / 389,655.47-583,966.49-200,108.18

Finding the Fourth Proportional to 389,655.47, 583,966.49 and 200,108.18

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Solution

The fourth proportional to 389,655.47, 583,966.49 and 200,108.18 is: 299,896.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,655.47 : 583,966.49 = 200,108.18 : x
  2. Step 2: Convert to fraction form
    389,655.47/583,966.49 = 200,108.18/x
  3. Step 3: Cross multiply
    389,655.47x = 583,966.49 × 200,108.18
  4. Step 4: Simplify right side
    389,655.47x = 116,856,467,574.52
  5. Step 5: Solve for x
    x = 116,856,467,574.52/389,655.47
  6. Step 6: Final answer
    x = 299,896.90

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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.