Home / 217,753.13-300,423.43-137,187.83

Finding the Fourth Proportional to 217,753.13, 300,423.43 and 137,187.83

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Solution

The fourth proportional to 217,753.13, 300,423.43 and 137,187.83 is: 189,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,753.13 : 300,423.43 = 137,187.83 : x
  2. Step 2: Convert to fraction form
    217,753.13/300,423.43 = 137,187.83/x
  3. Step 3: Cross multiply
    217,753.13x = 300,423.43 × 137,187.83
  4. Step 4: Simplify right side
    217,753.13x = 41,214,439,365.40
  5. Step 5: Solve for x
    x = 41,214,439,365.40/217,753.13
  6. Step 6: Final answer
    x = 189,271.40

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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.