Home / 285,123.58-426,833.25-172,462.86

Finding the Fourth Proportional to 285,123.58, 426,833.25 and 172,462.86

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Solution

The fourth proportional to 285,123.58, 426,833.25 and 172,462.86 is: 258,178.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,123.58 : 426,833.25 = 172,462.86 : x
  2. Step 2: Convert to fraction form
    285,123.58/426,833.25 = 172,462.86/x
  3. Step 3: Cross multiply
    285,123.58x = 426,833.25 × 172,462.86
  4. Step 4: Simplify right side
    285,123.58x = 73,612,883,038.10
  5. Step 5: Solve for x
    x = 73,612,883,038.10/285,123.58
  6. Step 6: Final answer
    x = 258,178.87

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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.