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Finding the Fourth Proportional to 401,338.19, 553,842.49 and 220,049.68

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Solution

The fourth proportional to 401,338.19, 553,842.49 and 220,049.68 is: 303,666.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,338.19 : 553,842.49 = 220,049.68 : x
  2. Step 2: Convert to fraction form
    401,338.19/553,842.49 = 220,049.68/x
  3. Step 3: Cross multiply
    401,338.19x = 553,842.49 × 220,049.68
  4. Step 4: Simplify right side
    401,338.19x = 121,872,859,255.81
  5. Step 5: Solve for x
    x = 121,872,859,255.81/401,338.19
  6. Step 6: Final answer
    x = 303,666.24

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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.