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Finding the Fourth Proportional to 340,009.40, 469,198.18 and 187,037.88

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Solution

The fourth proportional to 340,009.40, 469,198.18 and 187,037.88 is: 258,104.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,009.40 : 469,198.18 = 187,037.88 : x
  2. Step 2: Convert to fraction form
    340,009.40/469,198.18 = 187,037.88/x
  3. Step 3: Cross multiply
    340,009.40x = 469,198.18 × 187,037.88
  4. Step 4: Simplify right side
    340,009.40x = 87,757,832,887.06
  5. Step 5: Solve for x
    x = 87,757,832,887.06/340,009.40
  6. Step 6: Final answer
    x = 258,104.14

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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.