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Finding the Fourth Proportional to 285,567.88, 394,073.76 and 158,255.32

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Solution

The fourth proportional to 285,567.88, 394,073.76 and 158,255.32 is: 218,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,567.88 : 394,073.76 = 158,255.32 : x
  2. Step 2: Convert to fraction form
    285,567.88/394,073.76 = 158,255.32/x
  3. Step 3: Cross multiply
    285,567.88x = 394,073.76 × 158,255.32
  4. Step 4: Simplify right side
    285,567.88x = 62,364,268,992.40
  5. Step 5: Solve for x
    x = 62,364,268,992.40/285,567.88
  6. Step 6: Final answer
    x = 218,386.85

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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.