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Finding the Fourth Proportional to 178,214.70, 267,238.35 and 103,356.12

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Solution

The fourth proportional to 178,214.70, 267,238.35 and 103,356.12 is: 154,985.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,214.70 : 267,238.35 = 103,356.12 : x
  2. Step 2: Convert to fraction form
    178,214.70/267,238.35 = 103,356.12/x
  3. Step 3: Cross multiply
    178,214.70x = 267,238.35 × 103,356.12
  4. Step 4: Simplify right side
    178,214.70x = 27,620,718,971.20
  5. Step 5: Solve for x
    x = 27,620,718,971.20/178,214.70
  6. Step 6: Final answer
    x = 154,985.64

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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.