Home / 358,803.32-495,203.04-272,621

Finding the Fourth Proportional to 358,803.32, 495,203.04 and 272,621

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Solution

The fourth proportional to 358,803.32, 495,203.04 and 272,621 is: 376,258.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,803.32 : 495,203.04 = 272,621 : x
  2. Step 2: Convert to fraction form
    358,803.32/495,203.04 = 272,621/x
  3. Step 3: Cross multiply
    358,803.32x = 495,203.04 × 272,621
  4. Step 4: Simplify right side
    358,803.32x = 135,002,747,967.84
  5. Step 5: Solve for x
    x = 135,002,747,967.84/358,803.32
  6. Step 6: Final answer
    x = 376,258.36

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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.