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Finding the Fourth Proportional to 648,347.20, 972,229.20 and 248,855.20

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Solution

The fourth proportional to 648,347.20, 972,229.20 and 248,855.20 is: 373,170.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,347.20 : 972,229.20 = 248,855.20 : x
  2. Step 2: Convert to fraction form
    648,347.20/972,229.20 = 248,855.20/x
  3. Step 3: Cross multiply
    648,347.20x = 972,229.20 × 248,855.20
  4. Step 4: Simplify right side
    648,347.20x = 241,944,292,011.84
  5. Step 5: Solve for x
    x = 241,944,292,011.84/648,347.20
  6. Step 6: Final answer
    x = 373,170.88

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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.