Home / 285,122.08-426,831-172,461.36

Finding the Fourth Proportional to 285,122.08, 426,831 and 172,461.36

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Solution

The fourth proportional to 285,122.08, 426,831 and 172,461.36 is: 258,176.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,122.08 : 426,831 = 172,461.36 : x
  2. Step 2: Convert to fraction form
    285,122.08/426,831 = 172,461.36/x
  3. Step 3: Cross multiply
    285,122.08x = 426,831 × 172,461.36
  4. Step 4: Simplify right side
    285,122.08x = 73,611,854,750.16
  5. Step 5: Solve for x
    x = 73,611,854,750.16/285,122.08
  6. Step 6: Final answer
    x = 258,176.62

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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.