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Finding the Fourth Proportional to 274,071.36, 411,019.56 and 87,039.12

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Solution

The fourth proportional to 274,071.36, 411,019.56 and 87,039.12 is: 130,530.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,071.36 : 411,019.56 = 87,039.12 : x
  2. Step 2: Convert to fraction form
    274,071.36/411,019.56 = 87,039.12/x
  3. Step 3: Cross multiply
    274,071.36x = 411,019.56 × 87,039.12
  4. Step 4: Simplify right side
    274,071.36x = 35,774,780,805.19
  5. Step 5: Solve for x
    x = 35,774,780,805.19/274,071.36
  6. Step 6: Final answer
    x = 130,530.90

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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.