Home / 231,721.80-347,145.30-119,018.40

Finding the Fourth Proportional to 231,721.80, 347,145.30 and 119,018.40

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Solution

The fourth proportional to 231,721.80, 347,145.30 and 119,018.40 is: 178,302.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,721.80 : 347,145.30 = 119,018.40 : x
  2. Step 2: Convert to fraction form
    231,721.80/347,145.30 = 119,018.40/x
  3. Step 3: Cross multiply
    231,721.80x = 347,145.30 × 119,018.40
  4. Step 4: Simplify right side
    231,721.80x = 41,316,678,173.52
  5. Step 5: Solve for x
    x = 41,316,678,173.52/231,721.80
  6. Step 6: Final answer
    x = 178,302.94

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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.