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Finding the Fourth Proportional to 178,592.40, 267,888.60 and 139,179

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Solution

The fourth proportional to 178,592.40, 267,888.60 and 139,179 is: 208,768.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,592.40 : 267,888.60 = 139,179 : x
  2. Step 2: Convert to fraction form
    178,592.40/267,888.60 = 139,179/x
  3. Step 3: Cross multiply
    178,592.40x = 267,888.60 × 139,179
  4. Step 4: Simplify right side
    178,592.40x = 37,284,467,459.40
  5. Step 5: Solve for x
    x = 37,284,467,459.40/178,592.40
  6. Step 6: Final answer
    x = 208,768.50

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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.