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Finding the Fourth Proportional to 402,445.31, 555,253.40 and 241,241.54

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Solution

The fourth proportional to 402,445.31, 555,253.40 and 241,241.54 is: 332,840.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,445.31 : 555,253.40 = 241,241.54 : x
  2. Step 2: Convert to fraction form
    402,445.31/555,253.40 = 241,241.54/x
  3. Step 3: Cross multiply
    402,445.31x = 555,253.40 × 241,241.54
  4. Step 4: Simplify right side
    402,445.31x = 133,950,181,323.76
  5. Step 5: Solve for x
    x = 133,950,181,323.76/402,445.31
  6. Step 6: Final answer
    x = 332,840.71

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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.