Home / 429,162.32-643,743.46-228,875.92

Finding the Fourth Proportional to 429,162.32, 643,743.46 and 228,875.92

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Solution

The fourth proportional to 429,162.32, 643,743.46 and 228,875.92 is: 343,313.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,162.32 : 643,743.46 = 228,875.92 : x
  2. Step 2: Convert to fraction form
    429,162.32/643,743.46 = 228,875.92/x
  3. Step 3: Cross multiply
    429,162.32x = 643,743.46 × 228,875.92
  4. Step 4: Simplify right side
    429,162.32x = 147,337,376,651.48
  5. Step 5: Solve for x
    x = 147,337,376,651.48/429,162.32
  6. Step 6: Final answer
    x = 343,313.87

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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.