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Finding the Fourth Proportional to 287,880.48, 397,069.36 and 249,571.54

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Solution

The fourth proportional to 287,880.48, 397,069.36 and 249,571.54 is: 344,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,880.48 : 397,069.36 = 249,571.54 : x
  2. Step 2: Convert to fraction form
    287,880.48/397,069.36 = 249,571.54/x
  3. Step 3: Cross multiply
    287,880.48x = 397,069.36 × 249,571.54
  4. Step 4: Simplify right side
    287,880.48x = 99,097,211,662.01
  5. Step 5: Solve for x
    x = 99,097,211,662.01/287,880.48
  6. Step 6: Final answer
    x = 344,230.40

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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.