Home / 643,437.02-965,131.27-194,145.91

Finding the Fourth Proportional to 643,437.02, 965,131.27 and 194,145.91

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Solution

The fourth proportional to 643,437.02, 965,131.27 and 194,145.91 is: 291,211.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,437.02 : 965,131.27 = 194,145.91 : x
  2. Step 2: Convert to fraction form
    643,437.02/965,131.27 = 194,145.91/x
  3. Step 3: Cross multiply
    643,437.02x = 965,131.27 × 194,145.91
  4. Step 4: Simplify right side
    643,437.02x = 187,376,285,785.41
  5. Step 5: Solve for x
    x = 187,376,285,785.41/643,437.02
  6. Step 6: Final answer
    x = 291,211.54

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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.