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Finding the Fourth Proportional to 248,642.31, 373,073.72 and 130,285.51

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Solution

The fourth proportional to 248,642.31, 373,073.72 and 130,285.51 is: 195,486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,642.31 : 373,073.72 = 130,285.51 : x
  2. Step 2: Convert to fraction form
    248,642.31/373,073.72 = 130,285.51/x
  3. Step 3: Cross multiply
    248,642.31x = 373,073.72 × 130,285.51
  4. Step 4: Simplify right side
    248,642.31x = 48,606,101,491.51
  5. Step 5: Solve for x
    x = 48,606,101,491.51/248,642.31
  6. Step 6: Final answer
    x = 195,486.05

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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.