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Finding the Fourth Proportional to 535,565.44, 803,309.12 and 219,936.64

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Solution

The fourth proportional to 535,565.44, 803,309.12 and 219,936.64 is: 329,888.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,565.44 : 803,309.12 = 219,936.64 : x
  2. Step 2: Convert to fraction form
    535,565.44/803,309.12 = 219,936.64/x
  3. Step 3: Cross multiply
    535,565.44x = 803,309.12 × 219,936.64
  4. Step 4: Simplify right side
    535,565.44x = 176,677,108,734.16
  5. Step 5: Solve for x
    x = 176,677,108,734.16/535,565.44
  6. Step 6: Final answer
    x = 329,888.93

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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.