Home / 256,741.13-385,120.47-88,260.01

Finding the Fourth Proportional to 256,741.13, 385,120.47 and 88,260.01

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Solution

The fourth proportional to 256,741.13, 385,120.47 and 88,260.01 is: 132,393.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,741.13 : 385,120.47 = 88,260.01 : x
  2. Step 2: Convert to fraction form
    256,741.13/385,120.47 = 88,260.01/x
  3. Step 3: Cross multiply
    256,741.13x = 385,120.47 × 88,260.01
  4. Step 4: Simplify right side
    256,741.13x = 33,990,736,092.10
  5. Step 5: Solve for x
    x = 33,990,736,092.10/256,741.13
  6. Step 6: Final answer
    x = 132,393.03

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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.