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Finding the Fourth Proportional to 326,435.34, 488,702.07 and 242,567.40

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Solution

The fourth proportional to 326,435.34, 488,702.07 and 242,567.40 is: 363,144.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,435.34 : 488,702.07 = 242,567.40 : x
  2. Step 2: Convert to fraction form
    326,435.34/488,702.07 = 242,567.40/x
  3. Step 3: Cross multiply
    326,435.34x = 488,702.07 × 242,567.40
  4. Step 4: Simplify right side
    326,435.34x = 118,543,190,494.52
  5. Step 5: Solve for x
    x = 118,543,190,494.52/326,435.34
  6. Step 6: Final answer
    x = 363,144.48

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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.