Home / 285,384.16-393,833.28-158,061.76

Finding the Fourth Proportional to 285,384.16, 393,833.28 and 158,061.76

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Solution

The fourth proportional to 285,384.16, 393,833.28 and 158,061.76 is: 218,126.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,384.16 : 393,833.28 = 158,061.76 : x
  2. Step 2: Convert to fraction form
    285,384.16/393,833.28 = 158,061.76/x
  3. Step 3: Cross multiply
    285,384.16x = 393,833.28 × 158,061.76
  4. Step 4: Simplify right side
    285,384.16x = 62,249,981,383.37
  5. Step 5: Solve for x
    x = 62,249,981,383.37/285,384.16
  6. Step 6: Final answer
    x = 218,126.97

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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.