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Finding the Fourth Proportional to 538,457.12, 807,685.68 and 183,288.32

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Solution

The fourth proportional to 538,457.12, 807,685.68 and 183,288.32 is: 274,932.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,457.12 : 807,685.68 = 183,288.32 : x
  2. Step 2: Convert to fraction form
    538,457.12/807,685.68 = 183,288.32/x
  3. Step 3: Cross multiply
    538,457.12x = 807,685.68 × 183,288.32
  4. Step 4: Simplify right side
    538,457.12x = 148,039,351,375.26
  5. Step 5: Solve for x
    x = 148,039,351,375.26/538,457.12
  6. Step 6: Final answer
    x = 274,932.48

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Similar ratio
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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.