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Finding the Fourth Proportional to 282,461.21, 425,218.88 and 257,322.29

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Solution

The fourth proportional to 282,461.21, 425,218.88 and 257,322.29 is: 387,374.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,461.21 : 425,218.88 = 257,322.29 : x
  2. Step 2: Convert to fraction form
    282,461.21/425,218.88 = 257,322.29/x
  3. Step 3: Cross multiply
    282,461.21x = 425,218.88 × 257,322.29
  4. Step 4: Simplify right side
    282,461.21x = 109,418,294,470.05
  5. Step 5: Solve for x
    x = 109,418,294,470.05/282,461.21
  6. Step 6: Final answer
    x = 387,374.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.