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Finding the Fourth Proportional to 148,999.20, 223,412.40 and 55,514.40

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Solution

The fourth proportional to 148,999.20, 223,412.40 and 55,514.40 is: 83,239.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,999.20 : 223,412.40 = 55,514.40 : x
  2. Step 2: Convert to fraction form
    148,999.20/223,412.40 = 55,514.40/x
  3. Step 3: Cross multiply
    148,999.20x = 223,412.40 × 55,514.40
  4. Step 4: Simplify right side
    148,999.20x = 12,402,605,338.56
  5. Step 5: Solve for x
    x = 12,402,605,338.56/148,999.20
  6. Step 6: Final answer
    x = 83,239.41

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1.5x scale

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.