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Finding the Fourth Proportional to 179,430.60, 269,048.70 and 74,130.60

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Solution

The fourth proportional to 179,430.60, 269,048.70 and 74,130.60 is: 111,155.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,430.60 : 269,048.70 = 74,130.60 : x
  2. Step 2: Convert to fraction form
    179,430.60/269,048.70 = 74,130.60/x
  3. Step 3: Cross multiply
    179,430.60x = 269,048.70 × 74,130.60
  4. Step 4: Simplify right side
    179,430.60x = 19,944,741,560.22
  5. Step 5: Solve for x
    x = 19,944,741,560.22/179,430.60
  6. Step 6: Final answer
    x = 111,155.74

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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.