Home / 348,531.80-521,631.30-243,555.80

Finding the Fourth Proportional to 348,531.80, 521,631.30 and 243,555.80

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Solution

The fourth proportional to 348,531.80, 521,631.30 and 243,555.80 is: 364,518.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,531.80 : 521,631.30 = 243,555.80 : x
  2. Step 2: Convert to fraction form
    348,531.80/521,631.30 = 243,555.80/x
  3. Step 3: Cross multiply
    348,531.80x = 521,631.30 × 243,555.80
  4. Step 4: Simplify right side
    348,531.80x = 127,046,328,576.54
  5. Step 5: Solve for x
    x = 127,046,328,576.54/348,531.80
  6. Step 6: Final answer
    x = 364,518.61

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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.