Home / 203,332.20-280,697.58-135,389.40

Finding the Fourth Proportional to 203,332.20, 280,697.58 and 135,389.40

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Solution

The fourth proportional to 203,332.20, 280,697.58 and 135,389.40 is: 186,903.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,332.20 : 280,697.58 = 135,389.40 : x
  2. Step 2: Convert to fraction form
    203,332.20/280,697.58 = 135,389.40/x
  3. Step 3: Cross multiply
    203,332.20x = 280,697.58 × 135,389.40
  4. Step 4: Simplify right side
    203,332.20x = 38,003,476,937.65
  5. Step 5: Solve for x
    x = 38,003,476,937.65/203,332.20
  6. Step 6: Final answer
    x = 186,903.39

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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.