Home / 376,522.08-519,548.19-221,480.40

Finding the Fourth Proportional to 376,522.08, 519,548.19 and 221,480.40

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Solution

The fourth proportional to 376,522.08, 519,548.19 and 221,480.40 is: 305,612.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,522.08 : 519,548.19 = 221,480.40 : x
  2. Step 2: Convert to fraction form
    376,522.08/519,548.19 = 221,480.40/x
  3. Step 3: Cross multiply
    376,522.08x = 519,548.19 × 221,480.40
  4. Step 4: Simplify right side
    376,522.08x = 115,069,740,940.48
  5. Step 5: Solve for x
    x = 115,069,740,940.48/376,522.08
  6. Step 6: Final answer
    x = 305,612.20

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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.