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Finding the Fourth Proportional to 253,023.31, 349,433.63 and 218,867.82

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Solution

The fourth proportional to 253,023.31, 349,433.63 and 218,867.82 is: 302,263.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,023.31 : 349,433.63 = 218,867.82 : x
  2. Step 2: Convert to fraction form
    253,023.31/349,433.63 = 218,867.82/x
  3. Step 3: Cross multiply
    253,023.31x = 349,433.63 × 218,867.82
  4. Step 4: Simplify right side
    253,023.31x = 76,479,776,832.79
  5. Step 5: Solve for x
    x = 76,479,776,832.79/253,023.31
  6. Step 6: Final answer
    x = 302,263.76

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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.