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Finding the Fourth Proportional to 340,854.60, 511,277.10 and 153,865.80

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Solution

The fourth proportional to 340,854.60, 511,277.10 and 153,865.80 is: 230,796.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,854.60 : 511,277.10 = 153,865.80 : x
  2. Step 2: Convert to fraction form
    340,854.60/511,277.10 = 153,865.80/x
  3. Step 3: Cross multiply
    340,854.60x = 511,277.10 × 153,865.80
  4. Step 4: Simplify right side
    340,854.60x = 78,668,060,013.18
  5. Step 5: Solve for x
    x = 78,668,060,013.18/340,854.60
  6. Step 6: Final answer
    x = 230,796.53

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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.