Home / 285,558.12-394,048.53-158,230.98

Finding the Fourth Proportional to 285,558.12, 394,048.53 and 158,230.98

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Solution

The fourth proportional to 285,558.12, 394,048.53 and 158,230.98 is: 218,346.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,558.12 : 394,048.53 = 158,230.98 : x
  2. Step 2: Convert to fraction form
    285,558.12/394,048.53 = 158,230.98/x
  3. Step 3: Cross multiply
    285,558.12x = 394,048.53 × 158,230.98
  4. Step 4: Simplify right side
    285,558.12x = 62,350,685,069.46
  5. Step 5: Solve for x
    x = 62,350,685,069.46/285,558.12
  6. Step 6: Final answer
    x = 218,346.74

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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.