Home / 668,102.40-1,002,275.10-218,698.20

Finding the Fourth Proportional to 668,102.40, 1,002,275.10 and 218,698.20

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Solution

The fourth proportional to 668,102.40, 1,002,275.10 and 218,698.20 is: 328,087.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,102.40 : 1,002,275.10 = 218,698.20 : x
  2. Step 2: Convert to fraction form
    668,102.40/1,002,275.10 = 218,698.20/x
  3. Step 3: Cross multiply
    668,102.40x = 1,002,275.10 × 218,698.20
  4. Step 4: Simplify right side
    668,102.40x = 219,195,760,274.82
  5. Step 5: Solve for x
    x = 219,195,760,274.82/668,102.40
  6. Step 6: Final answer
    x = 328,087.07

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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.