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Finding the Fourth Proportional to 268,223.52, 370,155 and 147,372.63

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Solution

The fourth proportional to 268,223.52, 370,155 and 147,372.63 is: 203,377.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,223.52 : 370,155 = 147,372.63 : x
  2. Step 2: Convert to fraction form
    268,223.52/370,155 = 147,372.63/x
  3. Step 3: Cross multiply
    268,223.52x = 370,155 × 147,372.63
  4. Step 4: Simplify right side
    268,223.52x = 54,550,715,857.65
  5. Step 5: Solve for x
    x = 54,550,715,857.65/268,223.52
  6. Step 6: Final answer
    x = 203,377.82

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1.5x scale

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.