Home / 261,868.89-392,731.65-72,283.94

Finding the Fourth Proportional to 261,868.89, 392,731.65 and 72,283.94

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Solution

The fourth proportional to 261,868.89, 392,731.65 and 72,283.94 is: 108,406.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,868.89 : 392,731.65 = 72,283.94 : x
  2. Step 2: Convert to fraction form
    261,868.89/392,731.65 = 72,283.94/x
  3. Step 3: Cross multiply
    261,868.89x = 392,731.65 × 72,283.94
  4. Step 4: Simplify right side
    261,868.89x = 28,388,189,061.04
  5. Step 5: Solve for x
    x = 28,388,189,061.04/261,868.89
  6. Step 6: Final answer
    x = 108,406.12

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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.