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Finding the Fourth Proportional to 269,858.78, 372,437.93 and 156,681.53

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Solution

The fourth proportional to 269,858.78, 372,437.93 and 156,681.53 is: 216,239.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,858.78 : 372,437.93 = 156,681.53 : x
  2. Step 2: Convert to fraction form
    269,858.78/372,437.93 = 156,681.53/x
  3. Step 3: Cross multiply
    269,858.78x = 372,437.93 × 156,681.53
  4. Step 4: Simplify right side
    269,858.78x = 58,354,144,702.43
  5. Step 5: Solve for x
    x = 58,354,144,702.43/269,858.78
  6. Step 6: Final answer
    x = 216,239.56

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1.5x scale

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.