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Finding the Fourth Proportional to 127,360.40, 178,567 and 127,360.40

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Solution

The fourth proportional to 127,360.40, 178,567 and 127,360.40 is: 178,567

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,360.40 : 178,567 = 127,360.40 : x
  2. Step 2: Convert to fraction form
    127,360.40/178,567 = 127,360.40/x
  3. Step 3: Cross multiply
    127,360.40x = 178,567 × 127,360.40
  4. Step 4: Simplify right side
    127,360.40x = 22,742,364,546.80
  5. Step 5: Solve for x
    x = 22,742,364,546.80/127,360.40
  6. Step 6: Final answer
    x = 178,567

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.