Home / 286,116.72-394,822.68-158,792.40

Finding the Fourth Proportional to 286,116.72, 394,822.68 and 158,792.40

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Solution

The fourth proportional to 286,116.72, 394,822.68 and 158,792.40 is: 219,123.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,116.72 : 394,822.68 = 158,792.40 : x
  2. Step 2: Convert to fraction form
    286,116.72/394,822.68 = 158,792.40/x
  3. Step 3: Cross multiply
    286,116.72x = 394,822.68 × 158,792.40
  4. Step 4: Simplify right side
    286,116.72x = 62,694,840,931.63
  5. Step 5: Solve for x
    x = 62,694,840,931.63/286,116.72
  6. Step 6: Final answer
    x = 219,123.30

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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.