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Finding the Fourth Proportional to 336,645.64, 464,150.78 and 215,587.90

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Solution

The fourth proportional to 336,645.64, 464,150.78 and 215,587.90 is: 297,242.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,645.64 : 464,150.78 = 215,587.90 : x
  2. Step 2: Convert to fraction form
    336,645.64/464,150.78 = 215,587.90/x
  3. Step 3: Cross multiply
    336,645.64x = 464,150.78 × 215,587.90
  4. Step 4: Simplify right side
    336,645.64x = 100,065,292,254.27
  5. Step 5: Solve for x
    x = 100,065,292,254.27/336,645.64
  6. Step 6: Final answer
    x = 297,242.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.