Home / 285,608.79-394,140.13-158,292.58

Finding the Fourth Proportional to 285,608.79, 394,140.13 and 158,292.58

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Solution

The fourth proportional to 285,608.79, 394,140.13 and 158,292.58 is: 218,443.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,608.79 : 394,140.13 = 158,292.58 : x
  2. Step 2: Convert to fraction form
    285,608.79/394,140.13 = 158,292.58/x
  3. Step 3: Cross multiply
    285,608.79x = 394,140.13 × 158,292.58
  4. Step 4: Simplify right side
    285,608.79x = 62,389,457,267.77
  5. Step 5: Solve for x
    x = 62,389,457,267.77/285,608.79
  6. Step 6: Final answer
    x = 218,443.76

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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.