Home / 272,437.72-407,869.26-172,710.52

Finding the Fourth Proportional to 272,437.72, 407,869.26 and 172,710.52

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Solution

The fourth proportional to 272,437.72, 407,869.26 and 172,710.52 is: 258,566.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,437.72 : 407,869.26 = 172,710.52 : x
  2. Step 2: Convert to fraction form
    272,437.72/407,869.26 = 172,710.52/x
  3. Step 3: Cross multiply
    272,437.72x = 407,869.26 × 172,710.52
  4. Step 4: Simplify right side
    272,437.72x = 70,443,311,986.62
  5. Step 5: Solve for x
    x = 70,443,311,986.62/272,437.72
  6. Step 6: Final answer
    x = 258,566.66

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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.