Home / 389,631.49-537,686.18-217,552.12

Finding the Fourth Proportional to 389,631.49, 537,686.18 and 217,552.12

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Solution

The fourth proportional to 389,631.49, 537,686.18 and 217,552.12 is: 300,218.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,631.49 : 537,686.18 = 217,552.12 : x
  2. Step 2: Convert to fraction form
    389,631.49/537,686.18 = 217,552.12/x
  3. Step 3: Cross multiply
    389,631.49x = 537,686.18 × 217,552.12
  4. Step 4: Simplify right side
    389,631.49x = 116,974,765,665.27
  5. Step 5: Solve for x
    x = 116,974,765,665.27/389,631.49
  6. Step 6: Final answer
    x = 300,218.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.