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Finding the Fourth Proportional to 245,854.80, 368,897.40 and 127,659.60

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Solution

The fourth proportional to 245,854.80, 368,897.40 and 127,659.60 is: 191,549.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,854.80 : 368,897.40 = 127,659.60 : x
  2. Step 2: Convert to fraction form
    245,854.80/368,897.40 = 127,659.60/x
  3. Step 3: Cross multiply
    245,854.80x = 368,897.40 × 127,659.60
  4. Step 4: Simplify right side
    245,854.80x = 47,093,294,525.04
  5. Step 5: Solve for x
    x = 47,093,294,525.04/245,854.80
  6. Step 6: Final answer
    x = 191,549.22

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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.