Home / 285,078.18-393,381.21-170,334

Finding the Fourth Proportional to 285,078.18, 393,381.21 and 170,334

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Solution

The fourth proportional to 285,078.18, 393,381.21 and 170,334 is: 235,044.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,078.18 : 393,381.21 = 170,334 : x
  2. Step 2: Convert to fraction form
    285,078.18/393,381.21 = 170,334/x
  3. Step 3: Cross multiply
    285,078.18x = 393,381.21 × 170,334
  4. Step 4: Simplify right side
    285,078.18x = 67,006,195,024.14
  5. Step 5: Solve for x
    x = 67,006,195,024.14/285,078.18
  6. Step 6: Final answer
    x = 235,044.98

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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.