Home / 343,770.30-515,127.96-143,981.34

Finding the Fourth Proportional to 343,770.30, 515,127.96 and 143,981.34

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Solution

The fourth proportional to 343,770.30, 515,127.96 and 143,981.34 is: 215,751.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,770.30 : 515,127.96 = 143,981.34 : x
  2. Step 2: Convert to fraction form
    343,770.30/515,127.96 = 143,981.34/x
  3. Step 3: Cross multiply
    343,770.30x = 515,127.96 × 143,981.34
  4. Step 4: Simplify right side
    343,770.30x = 74,168,813,952.27
  5. Step 5: Solve for x
    x = 74,168,813,952.27/343,770.30
  6. Step 6: Final answer
    x = 215,751.08

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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.