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Finding the Fourth Proportional to 153,393.40, 229,827.30 and 121,900.60

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Solution

The fourth proportional to 153,393.40, 229,827.30 and 121,900.60 is: 182,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,393.40 : 229,827.30 = 121,900.60 : x
  2. Step 2: Convert to fraction form
    153,393.40/229,827.30 = 121,900.60/x
  3. Step 3: Cross multiply
    153,393.40x = 229,827.30 × 121,900.60
  4. Step 4: Simplify right side
    153,393.40x = 28,016,085,766.38
  5. Step 5: Solve for x
    x = 28,016,085,766.38/153,393.40
  6. Step 6: Final answer
    x = 182,642.05

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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.