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Finding the Fourth Proportional to 269,661.52, 372,118.36 and 148,779.12

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Solution

The fourth proportional to 269,661.52, 372,118.36 and 148,779.12 is: 205,307.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,661.52 : 372,118.36 = 148,779.12 : x
  2. Step 2: Convert to fraction form
    269,661.52/372,118.36 = 148,779.12/x
  3. Step 3: Cross multiply
    269,661.52x = 372,118.36 × 148,779.12
  4. Step 4: Simplify right side
    269,661.52x = 55,363,442,136.64
  5. Step 5: Solve for x
    x = 55,363,442,136.64/269,661.52
  6. Step 6: Final answer
    x = 205,307.16

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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.