Home / 261,869.85-392,796.98-72,341.63

Finding the Fourth Proportional to 261,869.85, 392,796.98 and 72,341.63

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Solution

The fourth proportional to 261,869.85, 392,796.98 and 72,341.63 is: 108,510.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,869.85 : 392,796.98 = 72,341.63 : x
  2. Step 2: Convert to fraction form
    261,869.85/392,796.98 = 72,341.63/x
  3. Step 3: Cross multiply
    261,869.85x = 392,796.98 × 72,341.63
  4. Step 4: Simplify right side
    261,869.85x = 28,415,572,009.15
  5. Step 5: Solve for x
    x = 28,415,572,009.15/261,869.85
  6. Step 6: Final answer
    x = 108,510.28

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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.