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Finding the Fourth Proportional to 404,319.93, 558,140.88 and 261,149.82

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Solution

The fourth proportional to 404,319.93, 558,140.88 and 261,149.82 is: 360,502.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,319.93 : 558,140.88 = 261,149.82 : x
  2. Step 2: Convert to fraction form
    404,319.93/558,140.88 = 261,149.82/x
  3. Step 3: Cross multiply
    404,319.93x = 558,140.88 × 261,149.82
  4. Step 4: Simplify right side
    404,319.93x = 145,758,390,346.64
  5. Step 5: Solve for x
    x = 145,758,390,346.64/404,319.93
  6. Step 6: Final answer
    x = 360,502.61

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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.