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Finding the Fourth Proportional to 404,691.80, 607,037.70 and 155,379.80

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Solution

The fourth proportional to 404,691.80, 607,037.70 and 155,379.80 is: 233,069.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,691.80 : 607,037.70 = 155,379.80 : x
  2. Step 2: Convert to fraction form
    404,691.80/607,037.70 = 155,379.80/x
  3. Step 3: Cross multiply
    404,691.80x = 607,037.70 × 155,379.80
  4. Step 4: Simplify right side
    404,691.80x = 94,321,396,418.46
  5. Step 5: Solve for x
    x = 94,321,396,418.46/404,691.80
  6. Step 6: Final answer
    x = 233,069.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.