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Finding the Fourth Proportional to 284,968.48, 393,268.08 and 157,641.88

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Solution

The fourth proportional to 284,968.48, 393,268.08 and 157,641.88 is: 217,552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,968.48 : 393,268.08 = 157,641.88 : x
  2. Step 2: Convert to fraction form
    284,968.48/393,268.08 = 157,641.88/x
  3. Step 3: Cross multiply
    284,968.48x = 393,268.08 × 157,641.88
  4. Step 4: Simplify right side
    284,968.48x = 61,995,519,475.19
  5. Step 5: Solve for x
    x = 61,995,519,475.19/284,968.48
  6. Step 6: Final answer
    x = 217,552.20

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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.