Home / 191,319.38-264,384.89-143,489.69

Finding the Fourth Proportional to 191,319.38, 264,384.89 and 143,489.69

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Solution

The fourth proportional to 191,319.38, 264,384.89 and 143,489.69 is: 198,288.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,319.38 : 264,384.89 = 143,489.69 : x
  2. Step 2: Convert to fraction form
    191,319.38/264,384.89 = 143,489.69/x
  3. Step 3: Cross multiply
    191,319.38x = 264,384.89 × 143,489.69
  4. Step 4: Simplify right side
    191,319.38x = 37,936,507,691.24
  5. Step 5: Solve for x
    x = 37,936,507,691.24/191,319.38
  6. Step 6: Final answer
    x = 198,288.89

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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.