Home / 286,389.60-395,218.08-159,061.92

Finding the Fourth Proportional to 286,389.60, 395,218.08 and 159,061.92

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Solution

The fourth proportional to 286,389.60, 395,218.08 and 159,061.92 is: 219,505.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,389.60 : 395,218.08 = 159,061.92 : x
  2. Step 2: Convert to fraction form
    286,389.60/395,218.08 = 159,061.92/x
  3. Step 3: Cross multiply
    286,389.60x = 395,218.08 × 159,061.92
  4. Step 4: Simplify right side
    286,389.60x = 62,864,146,623.51
  5. Step 5: Solve for x
    x = 62,864,146,623.51/286,389.60
  6. Step 6: Final answer
    x = 219,505.69

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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.