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Finding the Fourth Proportional to 209,361.50, 288,795.75 and 124,473.50

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Solution

The fourth proportional to 209,361.50, 288,795.75 and 124,473.50 is: 171,700.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,361.50 : 288,795.75 = 124,473.50 : x
  2. Step 2: Convert to fraction form
    209,361.50/288,795.75 = 124,473.50/x
  3. Step 3: Cross multiply
    209,361.50x = 288,795.75 × 124,473.50
  4. Step 4: Simplify right side
    209,361.50x = 35,947,417,787.63
  5. Step 5: Solve for x
    x = 35,947,417,787.63/209,361.50
  6. Step 6: Final answer
    x = 171,700.23

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1.5x scale

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.