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Finding the Fourth Proportional to 210,338.70, 313,898.26 and 187,900.08

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Solution

The fourth proportional to 210,338.70, 313,898.26 and 187,900.08 is: 280,412.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,338.70 : 313,898.26 = 187,900.08 : x
  2. Step 2: Convert to fraction form
    210,338.70/313,898.26 = 187,900.08/x
  3. Step 3: Cross multiply
    210,338.70x = 313,898.26 × 187,900.08
  4. Step 4: Simplify right side
    210,338.70x = 58,981,508,165.86
  5. Step 5: Solve for x
    x = 58,981,508,165.86/210,338.70
  6. Step 6: Final answer
    x = 280,412.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.