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Finding the Fourth Proportional to 421,504.83, 581,672.95 and 230,519.59

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Solution

The fourth proportional to 421,504.83, 581,672.95 and 230,519.59 is: 318,115.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,504.83 : 581,672.95 = 230,519.59 : x
  2. Step 2: Convert to fraction form
    421,504.83/581,672.95 = 230,519.59/x
  3. Step 3: Cross multiply
    421,504.83x = 581,672.95 × 230,519.59
  4. Step 4: Simplify right side
    421,504.83x = 134,087,007,917.61
  5. Step 5: Solve for x
    x = 134,087,007,917.61/421,504.83
  6. Step 6: Final answer
    x = 318,115.00

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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.