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Finding the Fourth Proportional to 260,242.80, 390,947.40 and 249,615.60

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Solution

The fourth proportional to 260,242.80, 390,947.40 and 249,615.60 is: 374,982.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,242.80 : 390,947.40 = 249,615.60 : x
  2. Step 2: Convert to fraction form
    260,242.80/390,947.40 = 249,615.60/x
  3. Step 3: Cross multiply
    260,242.80x = 390,947.40 × 249,615.60
  4. Step 4: Simplify right side
    260,242.80x = 97,586,569,819.44
  5. Step 5: Solve for x
    x = 97,586,569,819.44/260,242.80
  6. Step 6: Final answer
    x = 374,982.78

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