Home / 286,490.05-395,356.19-157,436.83

Finding the Fourth Proportional to 286,490.05, 395,356.19 and 157,436.83

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Solution

The fourth proportional to 286,490.05, 395,356.19 and 157,436.83 is: 217,262.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,490.05 : 395,356.19 = 157,436.83 : x
  2. Step 2: Convert to fraction form
    286,490.05/395,356.19 = 157,436.83/x
  3. Step 3: Cross multiply
    286,490.05x = 395,356.19 × 157,436.83
  4. Step 4: Simplify right side
    286,490.05x = 62,243,624,487.29
  5. Step 5: Solve for x
    x = 62,243,624,487.29/286,490.05
  6. Step 6: Final answer
    x = 217,262.78

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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.