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Finding the Fourth Proportional to 445,560.40, 668,045.40 and 245,976.40

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Solution

The fourth proportional to 445,560.40, 668,045.40 and 245,976.40 is: 368,801.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,560.40 : 668,045.40 = 245,976.40 : x
  2. Step 2: Convert to fraction form
    445,560.40/668,045.40 = 245,976.40/x
  3. Step 3: Cross multiply
    445,560.40x = 668,045.40 × 245,976.40
  4. Step 4: Simplify right side
    445,560.40x = 164,323,402,528.56
  5. Step 5: Solve for x
    x = 164,323,402,528.56/445,560.40
  6. Step 6: Final answer
    x = 368,801.63

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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.