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Finding the Fourth Proportional to 178,271.70, 267,407.55 and 143,279.70

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Solution

The fourth proportional to 178,271.70, 267,407.55 and 143,279.70 is: 214,919.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,271.70 : 267,407.55 = 143,279.70 : x
  2. Step 2: Convert to fraction form
    178,271.70/267,407.55 = 143,279.70/x
  3. Step 3: Cross multiply
    178,271.70x = 267,407.55 × 143,279.70
  4. Step 4: Simplify right side
    178,271.70x = 38,314,073,541.74
  5. Step 5: Solve for x
    x = 38,314,073,541.74/178,271.70
  6. Step 6: Final answer
    x = 214,919.55

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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.