Home / 343,572.12-515,559.15-143,875.73

Finding the Fourth Proportional to 343,572.12, 515,559.15 and 143,875.73

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Solution

The fourth proportional to 343,572.12, 515,559.15 and 143,875.73 is: 215,897.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,572.12 : 515,559.15 = 143,875.73 : x
  2. Step 2: Convert to fraction form
    343,572.12/515,559.15 = 143,875.73/x
  3. Step 3: Cross multiply
    343,572.12x = 515,559.15 × 143,875.73
  4. Step 4: Simplify right side
    343,572.12x = 74,176,446,486.63
  5. Step 5: Solve for x
    x = 74,176,446,486.63/343,572.12
  6. Step 6: Final answer
    x = 215,897.75

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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.