Home / 243,178.38-364,896-172,557.36

Finding the Fourth Proportional to 243,178.38, 364,896 and 172,557.36

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Solution

The fourth proportional to 243,178.38, 364,896 and 172,557.36 is: 258,927.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,178.38 : 364,896 = 172,557.36 : x
  2. Step 2: Convert to fraction form
    243,178.38/364,896 = 172,557.36/x
  3. Step 3: Cross multiply
    243,178.38x = 364,896 × 172,557.36
  4. Step 4: Simplify right side
    243,178.38x = 62,965,490,434.56
  5. Step 5: Solve for x
    x = 62,965,490,434.56/243,178.38
  6. Step 6: Final answer
    x = 258,927.17

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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.