Home / 272,640.30-376,240.05-157,934.58

Finding the Fourth Proportional to 272,640.30, 376,240.05 and 157,934.58

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Solution

The fourth proportional to 272,640.30, 376,240.05 and 157,934.58 is: 217,947.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,640.30 : 376,240.05 = 157,934.58 : x
  2. Step 2: Convert to fraction form
    272,640.30/376,240.05 = 157,934.58/x
  3. Step 3: Cross multiply
    272,640.30x = 376,240.05 × 157,934.58
  4. Step 4: Simplify right side
    272,640.30x = 59,421,314,275.93
  5. Step 5: Solve for x
    x = 59,421,314,275.93/272,640.30
  6. Step 6: Final answer
    x = 217,947.66

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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.