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Finding the Fourth Proportional to 398,799.64, 550,068.60 and 237,529.72

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Solution

The fourth proportional to 398,799.64, 550,068.60 and 237,529.72 is: 327,627.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,799.64 : 550,068.60 = 237,529.72 : x
  2. Step 2: Convert to fraction form
    398,799.64/550,068.60 = 237,529.72/x
  3. Step 3: Cross multiply
    398,799.64x = 550,068.60 × 237,529.72
  4. Step 4: Simplify right side
    398,799.64x = 130,657,640,538.79
  5. Step 5: Solve for x
    x = 130,657,640,538.79/398,799.64
  6. Step 6: Final answer
    x = 327,627.28

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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.