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Finding the Fourth Proportional to 261,701.80, 392,552.70 and 219,711.40

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Solution

The fourth proportional to 261,701.80, 392,552.70 and 219,711.40 is: 329,567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,701.80 : 392,552.70 = 219,711.40 : x
  2. Step 2: Convert to fraction form
    261,701.80/392,552.70 = 219,711.40/x
  3. Step 3: Cross multiply
    261,701.80x = 392,552.70 × 219,711.40
  4. Step 4: Simplify right side
    261,701.80x = 86,248,303,290.78
  5. Step 5: Solve for x
    x = 86,248,303,290.78/261,701.80
  6. Step 6: Final answer
    x = 329,567.10

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