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Finding the Fourth Proportional to 315,702.54, 435,773.33 and 251,289.93

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Solution

The fourth proportional to 315,702.54, 435,773.33 and 251,289.93 is: 346,862.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,702.54 : 435,773.33 = 251,289.93 : x
  2. Step 2: Convert to fraction form
    315,702.54/435,773.33 = 251,289.93/x
  3. Step 3: Cross multiply
    315,702.54x = 435,773.33 × 251,289.93
  4. Step 4: Simplify right side
    315,702.54x = 109,505,449,591.57
  5. Step 5: Solve for x
    x = 109,505,449,591.57/315,702.54
  6. Step 6: Final answer
    x = 346,862.74

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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.