Home / 274,543.46-378,876.39-153,681.74

Finding the Fourth Proportional to 274,543.46, 378,876.39 and 153,681.74

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Solution

The fourth proportional to 274,543.46, 378,876.39 and 153,681.74 is: 212,084.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,543.46 : 378,876.39 = 153,681.74 : x
  2. Step 2: Convert to fraction form
    274,543.46/378,876.39 = 153,681.74/x
  3. Step 3: Cross multiply
    274,543.46x = 378,876.39 × 153,681.74
  4. Step 4: Simplify right side
    274,543.46x = 58,226,382,860.12
  5. Step 5: Solve for x
    x = 58,226,382,860.12/274,543.46
  6. Step 6: Final answer
    x = 212,084.39

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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.