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Finding the Fourth Proportional to 248,116.30, 372,174.45 and 143,140.30

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Solution

The fourth proportional to 248,116.30, 372,174.45 and 143,140.30 is: 214,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,116.30 : 372,174.45 = 143,140.30 : x
  2. Step 2: Convert to fraction form
    248,116.30/372,174.45 = 143,140.30/x
  3. Step 3: Cross multiply
    248,116.30x = 372,174.45 × 143,140.30
  4. Step 4: Simplify right side
    248,116.30x = 53,273,162,425.34
  5. Step 5: Solve for x
    x = 53,273,162,425.34/248,116.30
  6. Step 6: Final answer
    x = 214,710.45

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1.5x scale

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.