Home / 279,521.40-419,153.01-89,946.48

Finding the Fourth Proportional to 279,521.40, 419,153.01 and 89,946.48

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Solution

The fourth proportional to 279,521.40, 419,153.01 and 89,946.48 is: 134,878.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,521.40 : 419,153.01 = 89,946.48 : x
  2. Step 2: Convert to fraction form
    279,521.40/419,153.01 = 89,946.48/x
  3. Step 3: Cross multiply
    279,521.40x = 419,153.01 × 89,946.48
  4. Step 4: Simplify right side
    279,521.40x = 37,701,337,830.90
  5. Step 5: Solve for x
    x = 37,701,337,830.90/279,521.40
  6. Step 6: Final answer
    x = 134,878.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.