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Finding the Fourth Proportional to 248,136.70, 372,242.01 and 115,030.45

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Solution

The fourth proportional to 248,136.70, 372,242.01 and 115,030.45 is: 172,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,136.70 : 372,242.01 = 115,030.45 : x
  2. Step 2: Convert to fraction form
    248,136.70/372,242.01 = 115,030.45/x
  3. Step 3: Cross multiply
    248,136.70x = 372,242.01 × 115,030.45
  4. Step 4: Simplify right side
    248,136.70x = 42,819,165,919.20
  5. Step 5: Solve for x
    x = 42,819,165,919.20/248,136.70
  6. Step 6: Final answer
    x = 172,562.81

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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.