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Finding the Fourth Proportional to 406,431.54, 561,149.37 and 253,702.26

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Solution

The fourth proportional to 406,431.54, 561,149.37 and 253,702.26 is: 350,280.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,431.54 : 561,149.37 = 253,702.26 : x
  2. Step 2: Convert to fraction form
    406,431.54/561,149.37 = 253,702.26/x
  3. Step 3: Cross multiply
    406,431.54x = 561,149.37 × 253,702.26
  4. Step 4: Simplify right side
    406,431.54x = 142,364,863,366.58
  5. Step 5: Solve for x
    x = 142,364,863,366.58/406,431.54
  6. Step 6: Final answer
    x = 350,280.06

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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.