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Finding the Fourth Proportional to 406,040.32, 560,268.80 and 255,029.76

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Solution

The fourth proportional to 406,040.32, 560,268.80 and 255,029.76 is: 351,899.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,040.32 : 560,268.80 = 255,029.76 : x
  2. Step 2: Convert to fraction form
    406,040.32/560,268.80 = 255,029.76/x
  3. Step 3: Cross multiply
    406,040.32x = 560,268.80 × 255,029.76
  4. Step 4: Simplify right side
    406,040.32x = 142,885,217,599.49
  5. Step 5: Solve for x
    x = 142,885,217,599.49/406,040.32
  6. Step 6: Final answer
    x = 351,899.09

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1.5x scale

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.