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Finding the Fourth Proportional to 338,030.76, 506,695.77 and 211,380.34

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Solution

The fourth proportional to 338,030.76, 506,695.77 and 211,380.34 is: 316,851.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,030.76 : 506,695.77 = 211,380.34 : x
  2. Step 2: Convert to fraction form
    338,030.76/506,695.77 = 211,380.34/x
  3. Step 3: Cross multiply
    338,030.76x = 506,695.77 × 211,380.34
  4. Step 4: Simplify right side
    338,030.76x = 107,105,524,139.16
  5. Step 5: Solve for x
    x = 107,105,524,139.16/338,030.76
  6. Step 6: Final answer
    x = 316,851.41

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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.