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Finding the Fourth Proportional to 445,853.95, 668,640.45 and 146,264.72

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Solution

The fourth proportional to 445,853.95, 668,640.45 and 146,264.72 is: 219,350.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,853.95 : 668,640.45 = 146,264.72 : x
  2. Step 2: Convert to fraction form
    445,853.95/668,640.45 = 146,264.72/x
  3. Step 3: Cross multiply
    445,853.95x = 668,640.45 × 146,264.72
  4. Step 4: Simplify right side
    445,853.95x = 97,798,507,932.21
  5. Step 5: Solve for x
    x = 97,798,507,932.21/445,853.95
  6. Step 6: Final answer
    x = 219,350.99

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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.