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Finding the Fourth Proportional to 284,420.97, 425,376.59 and 253,051.20

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Solution

The fourth proportional to 284,420.97, 425,376.59 and 253,051.20 is: 378,460.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,420.97 : 425,376.59 = 253,051.20 : x
  2. Step 2: Convert to fraction form
    284,420.97/425,376.59 = 253,051.20/x
  3. Step 3: Cross multiply
    284,420.97x = 425,376.59 × 253,051.20
  4. Step 4: Simplify right side
    284,420.97x = 107,642,055,286.15
  5. Step 5: Solve for x
    x = 107,642,055,286.15/284,420.97
  6. Step 6: Final answer
    x = 378,460.33

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1.5x scale

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.