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Finding the Fourth Proportional to 402,445.36, 555,342.06 and 232,690.42

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Solution

The fourth proportional to 402,445.36, 555,342.06 and 232,690.42 is: 321,093.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,445.36 : 555,342.06 = 232,690.42 : x
  2. Step 2: Convert to fraction form
    402,445.36/555,342.06 = 232,690.42/x
  3. Step 3: Cross multiply
    402,445.36x = 555,342.06 × 232,690.42
  4. Step 4: Simplify right side
    402,445.36x = 129,222,777,185.07
  5. Step 5: Solve for x
    x = 129,222,777,185.07/402,445.36
  6. Step 6: Final answer
    x = 321,093.97

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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.