Home / 401,384.56-553,916.92-220,113.04

Finding the Fourth Proportional to 401,384.56, 553,916.92 and 220,113.04

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Solution

The fourth proportional to 401,384.56, 553,916.92 and 220,113.04 is: 303,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,384.56 : 553,916.92 = 220,113.04 : x
  2. Step 2: Convert to fraction form
    401,384.56/553,916.92 = 220,113.04/x
  3. Step 3: Cross multiply
    401,384.56x = 553,916.92 × 220,113.04
  4. Step 4: Simplify right side
    401,384.56x = 121,924,337,168.64
  5. Step 5: Solve for x
    x = 121,924,337,168.64/401,384.56
  6. Step 6: Final answer
    x = 303,759.41

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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.