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Finding the Fourth Proportional to 305,259.80, 457,760.10 and 147,536.60

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Solution

The fourth proportional to 305,259.80, 457,760.10 and 147,536.60 is: 221,242.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,259.80 : 457,760.10 = 147,536.60 : x
  2. Step 2: Convert to fraction form
    305,259.80/457,760.10 = 147,536.60/x
  3. Step 3: Cross multiply
    305,259.80x = 457,760.10 × 147,536.60
  4. Step 4: Simplify right side
    305,259.80x = 67,536,368,769.66
  5. Step 5: Solve for x
    x = 67,536,368,769.66/305,259.80
  6. Step 6: Final answer
    x = 221,242.26

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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.