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Finding the Fourth Proportional to 220,862.40, 304,781.80 and 134,965.01

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Solution

The fourth proportional to 220,862.40, 304,781.80 and 134,965.01 is: 186,246.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,862.40 : 304,781.80 = 134,965.01 : x
  2. Step 2: Convert to fraction form
    220,862.40/304,781.80 = 134,965.01/x
  3. Step 3: Cross multiply
    220,862.40x = 304,781.80 × 134,965.01
  4. Step 4: Simplify right side
    220,862.40x = 41,134,878,695.02
  5. Step 5: Solve for x
    x = 41,134,878,695.02/220,862.40
  6. Step 6: Final answer
    x = 186,246.64

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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.