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Finding the Fourth Proportional to 177,042.40, 265,610.88 and 77,210.64

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Solution

The fourth proportional to 177,042.40, 265,610.88 and 77,210.64 is: 115,836.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,042.40 : 265,610.88 = 77,210.64 : x
  2. Step 2: Convert to fraction form
    177,042.40/265,610.88 = 77,210.64/x
  3. Step 3: Cross multiply
    177,042.40x = 265,610.88 × 77,210.64
  4. Step 4: Simplify right side
    177,042.40x = 20,507,986,035.76
  5. Step 5: Solve for x
    x = 20,507,986,035.76/177,042.40
  6. Step 6: Final answer
    x = 115,836.58

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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.