Home / 400,913.06-553,260.24-219,631.55

Finding the Fourth Proportional to 400,913.06, 553,260.24 and 219,631.55

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Solution

The fourth proportional to 400,913.06, 553,260.24 and 219,631.55 is: 303,091.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,913.06 : 553,260.24 = 219,631.55 : x
  2. Step 2: Convert to fraction form
    400,913.06/553,260.24 = 219,631.55/x
  3. Step 3: Cross multiply
    400,913.06x = 553,260.24 × 219,631.55
  4. Step 4: Simplify right side
    400,913.06x = 121,513,401,298.27
  5. Step 5: Solve for x
    x = 121,513,401,298.27/400,913.06
  6. Step 6: Final answer
    x = 303,091.65

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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.