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Finding the Fourth Proportional to 178,577.40, 267,866.10 and 139,164

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Solution

The fourth proportional to 178,577.40, 267,866.10 and 139,164 is: 208,746.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,577.40 : 267,866.10 = 139,164 : x
  2. Step 2: Convert to fraction form
    178,577.40/267,866.10 = 139,164/x
  3. Step 3: Cross multiply
    178,577.40x = 267,866.10 × 139,164
  4. Step 4: Simplify right side
    178,577.40x = 37,277,317,940.40
  5. Step 5: Solve for x
    x = 37,277,317,940.40/178,577.40
  6. Step 6: Final answer
    x = 208,746.00

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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.