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Finding the Fourth Proportional to 265,154.40, 397,731.60 and 165,621.60

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Solution

The fourth proportional to 265,154.40, 397,731.60 and 165,621.60 is: 248,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,154.40 : 397,731.60 = 165,621.60 : x
  2. Step 2: Convert to fraction form
    265,154.40/397,731.60 = 165,621.60/x
  3. Step 3: Cross multiply
    265,154.40x = 397,731.60 × 165,621.60
  4. Step 4: Simplify right side
    265,154.40x = 65,872,943,962.56
  5. Step 5: Solve for x
    x = 65,872,943,962.56/265,154.40
  6. Step 6: Final answer
    x = 248,432.40

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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.