Home / 348,029.80-521,655.90-148,316.20

Finding the Fourth Proportional to 348,029.80, 521,655.90 and 148,316.20

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Solution

The fourth proportional to 348,029.80, 521,655.90 and 148,316.20 is: 222,308.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,029.80 : 521,655.90 = 148,316.20 : x
  2. Step 2: Convert to fraction form
    348,029.80/521,655.90 = 148,316.20/x
  3. Step 3: Cross multiply
    348,029.80x = 521,655.90 × 148,316.20
  4. Step 4: Simplify right side
    348,029.80x = 77,370,020,795.58
  5. Step 5: Solve for x
    x = 77,370,020,795.58/348,029.80
  6. Step 6: Final answer
    x = 222,308.61

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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.