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Finding the Fourth Proportional to 147,301.27, 221,048.76 and 80,788.08

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Solution

The fourth proportional to 147,301.27, 221,048.76 and 80,788.08 is: 121,235.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,301.27 : 221,048.76 = 80,788.08 : x
  2. Step 2: Convert to fraction form
    147,301.27/221,048.76 = 80,788.08/x
  3. Step 3: Cross multiply
    147,301.27x = 221,048.76 × 80,788.08
  4. Step 4: Simplify right side
    147,301.27x = 17,858,106,038.67
  5. Step 5: Solve for x
    x = 17,858,106,038.67/147,301.27
  6. Step 6: Final answer
    x = 121,235.25

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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.