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Finding the Fourth Proportional to 154,862.61, 213,484.20 and 109,460.49

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Solution

The fourth proportional to 154,862.61, 213,484.20 and 109,460.49 is: 150,895.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,862.61 : 213,484.20 = 109,460.49 : x
  2. Step 2: Convert to fraction form
    154,862.61/213,484.20 = 109,460.49/x
  3. Step 3: Cross multiply
    154,862.61x = 213,484.20 × 109,460.49
  4. Step 4: Simplify right side
    154,862.61x = 23,368,084,591.96
  5. Step 5: Solve for x
    x = 23,368,084,591.96/154,862.61
  6. Step 6: Final answer
    x = 150,895.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.