Home / 348,079.90-521,621.70-198,003.10

Finding the Fourth Proportional to 348,079.90, 521,621.70 and 198,003.10

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Solution

The fourth proportional to 348,079.90, 521,621.70 and 198,003.10 is: 296,721.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,079.90 : 521,621.70 = 198,003.10 : x
  2. Step 2: Convert to fraction form
    348,079.90/521,621.70 = 198,003.10/x
  3. Step 3: Cross multiply
    348,079.90x = 521,621.70 × 198,003.10
  4. Step 4: Simplify right side
    348,079.90x = 103,282,713,627.27
  5. Step 5: Solve for x
    x = 103,282,713,627.27/348,079.90
  6. Step 6: Final answer
    x = 296,721.28

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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.