Home / 389,836.95-537,969.15-217,757.31

Finding the Fourth Proportional to 389,836.95, 537,969.15 and 217,757.31

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Solution

The fourth proportional to 389,836.95, 537,969.15 and 217,757.31 is: 300,501.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,836.95 : 537,969.15 = 217,757.31 : x
  2. Step 2: Convert to fraction form
    389,836.95/537,969.15 = 217,757.31/x
  3. Step 3: Cross multiply
    389,836.95x = 537,969.15 × 217,757.31
  4. Step 4: Simplify right side
    389,836.95x = 117,146,714,966.99
  5. Step 5: Solve for x
    x = 117,146,714,966.99/389,836.95
  6. Step 6: Final answer
    x = 300,501.83

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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.