Home / 212,939.60-293,709.30-172,655.06

Finding the Fourth Proportional to 212,939.60, 293,709.30 and 172,655.06

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Solution

The fourth proportional to 212,939.60, 293,709.30 and 172,655.06 is: 238,144.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,939.60 : 293,709.30 = 172,655.06 : x
  2. Step 2: Convert to fraction form
    212,939.60/293,709.30 = 172,655.06/x
  3. Step 3: Cross multiply
    212,939.60x = 293,709.30 × 172,655.06
  4. Step 4: Simplify right side
    212,939.60x = 50,710,396,814.06
  5. Step 5: Solve for x
    x = 50,710,396,814.06/212,939.60
  6. Step 6: Final answer
    x = 238,144.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.