Home / 343,623.27-515,123.87-121,955.43

Finding the Fourth Proportional to 343,623.27, 515,123.87 and 121,955.43

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Solution

The fourth proportional to 343,623.27, 515,123.87 and 121,955.43 is: 182,822.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,623.27 : 515,123.87 = 121,955.43 : x
  2. Step 2: Convert to fraction form
    343,623.27/515,123.87 = 121,955.43/x
  3. Step 3: Cross multiply
    343,623.27x = 515,123.87 × 121,955.43
  4. Step 4: Simplify right side
    343,623.27x = 62,822,152,459.34
  5. Step 5: Solve for x
    x = 62,822,152,459.34/343,623.27
  6. Step 6: Final answer
    x = 182,822.75

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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.