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Finding the Fourth Proportional to 445,760.61, 668,838.35 and 180,040.11

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Solution

The fourth proportional to 445,760.61, 668,838.35 and 180,040.11 is: 270,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,760.61 : 668,838.35 = 180,040.11 : x
  2. Step 2: Convert to fraction form
    445,760.61/668,838.35 = 180,040.11/x
  3. Step 3: Cross multiply
    445,760.61x = 668,838.35 × 180,040.11
  4. Step 4: Simplify right side
    445,760.61x = 120,417,730,106.22
  5. Step 5: Solve for x
    x = 120,417,730,106.22/445,760.61
  6. Step 6: Final answer
    x = 270,139.91

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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.