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Finding the Fourth Proportional to 377,070.63, 520,355.28 and 213,757.95

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Solution

The fourth proportional to 377,070.63, 520,355.28 and 213,757.95 is: 294,984.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,070.63 : 520,355.28 = 213,757.95 : x
  2. Step 2: Convert to fraction form
    377,070.63/520,355.28 = 213,757.95/x
  3. Step 3: Cross multiply
    377,070.63x = 520,355.28 × 213,757.95
  4. Step 4: Simplify right side
    377,070.63x = 111,230,077,924.48
  5. Step 5: Solve for x
    x = 111,230,077,924.48/377,070.63
  6. Step 6: Final answer
    x = 294,984.73

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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.