Home / 371,569.20-557,353.80-221,978.40

Finding the Fourth Proportional to 371,569.20, 557,353.80 and 221,978.40

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Solution

The fourth proportional to 371,569.20, 557,353.80 and 221,978.40 is: 332,967.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,569.20 : 557,353.80 = 221,978.40 : x
  2. Step 2: Convert to fraction form
    371,569.20/557,353.80 = 221,978.40/x
  3. Step 3: Cross multiply
    371,569.20x = 557,353.80 × 221,978.40
  4. Step 4: Simplify right side
    371,569.20x = 123,720,504,757.92
  5. Step 5: Solve for x
    x = 123,720,504,757.92/371,569.20
  6. Step 6: Final answer
    x = 332,967.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.