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Finding the Fourth Proportional to 147,891, 221,888.34 and 64,791.48

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Solution

The fourth proportional to 147,891, 221,888.34 and 64,791.48 is: 97,209.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,891 : 221,888.34 = 64,791.48 : x
  2. Step 2: Convert to fraction form
    147,891/221,888.34 = 64,791.48/x
  3. Step 3: Cross multiply
    147,891x = 221,888.34 × 64,791.48
  4. Step 4: Simplify right side
    147,891x = 14,376,473,943.34
  5. Step 5: Solve for x
    x = 14,376,473,943.34/147,891
  6. Step 6: Final answer
    x = 97,209.93

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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.