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Finding the Fourth Proportional to 461,353.12, 636,675.60 and 270,420.64

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Solution

The fourth proportional to 461,353.12, 636,675.60 and 270,420.64 is: 373,185.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,353.12 : 636,675.60 = 270,420.64 : x
  2. Step 2: Convert to fraction form
    461,353.12/636,675.60 = 270,420.64/x
  3. Step 3: Cross multiply
    461,353.12x = 636,675.60 × 270,420.64
  4. Step 4: Simplify right side
    461,353.12x = 172,170,223,224.38
  5. Step 5: Solve for x
    x = 172,170,223,224.38/461,353.12
  6. Step 6: Final answer
    x = 373,185.34

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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.