Home / 348,036.80-521,018.40-207,723.20

Finding the Fourth Proportional to 348,036.80, 521,018.40 and 207,723.20

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Solution

The fourth proportional to 348,036.80, 521,018.40 and 207,723.20 is: 310,965.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,036.80 : 521,018.40 = 207,723.20 : x
  2. Step 2: Convert to fraction form
    348,036.80/521,018.40 = 207,723.20/x
  3. Step 3: Cross multiply
    348,036.80x = 521,018.40 × 207,723.20
  4. Step 4: Simplify right side
    348,036.80x = 108,227,609,306.88
  5. Step 5: Solve for x
    x = 108,227,609,306.88/348,036.80
  6. Step 6: Final answer
    x = 310,965.99

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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.