Home / 285,700.39-394,240.03-158,365.15

Finding the Fourth Proportional to 285,700.39, 394,240.03 and 158,365.15

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Solution

The fourth proportional to 285,700.39, 394,240.03 and 158,365.15 is: 218,529.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,700.39 : 394,240.03 = 158,365.15 : x
  2. Step 2: Convert to fraction form
    285,700.39/394,240.03 = 158,365.15/x
  3. Step 3: Cross multiply
    285,700.39x = 394,240.03 × 158,365.15
  4. Step 4: Simplify right side
    285,700.39x = 62,433,881,486.95
  5. Step 5: Solve for x
    x = 62,433,881,486.95/285,700.39
  6. Step 6: Final answer
    x = 218,529.21

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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.