Home / 261,938.73-392,897.15-74,950.23

Finding the Fourth Proportional to 261,938.73, 392,897.15 and 74,950.23

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Solution

The fourth proportional to 261,938.73, 392,897.15 and 74,950.23 is: 112,422.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,938.73 : 392,897.15 = 74,950.23 : x
  2. Step 2: Convert to fraction form
    261,938.73/392,897.15 = 74,950.23/x
  3. Step 3: Cross multiply
    261,938.73x = 392,897.15 × 74,950.23
  4. Step 4: Simplify right side
    261,938.73x = 29,447,731,758.84
  5. Step 5: Solve for x
    x = 29,447,731,758.84/261,938.73
  6. Step 6: Final answer
    x = 112,422.21

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1.5x scale

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.