Home / 203,329.20-280,693.44-135,386.40

Finding the Fourth Proportional to 203,329.20, 280,693.44 and 135,386.40

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Solution

The fourth proportional to 203,329.20, 280,693.44 and 135,386.40 is: 186,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,329.20 : 280,693.44 = 135,386.40 : x
  2. Step 2: Convert to fraction form
    203,329.20/280,693.44 = 135,386.40/x
  3. Step 3: Cross multiply
    203,329.20x = 280,693.44 × 135,386.40
  4. Step 4: Simplify right side
    203,329.20x = 38,002,074,345.22
  5. Step 5: Solve for x
    x = 38,002,074,345.22/203,329.20
  6. Step 6: Final answer
    x = 186,899.25

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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.