Home / 400,845.06-553,165.59-219,557.22

Finding the Fourth Proportional to 400,845.06, 553,165.59 and 219,557.22

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Solution

The fourth proportional to 400,845.06, 553,165.59 and 219,557.22 is: 302,988.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,845.06 : 553,165.59 = 219,557.22 : x
  2. Step 2: Convert to fraction form
    400,845.06/553,165.59 = 219,557.22/x
  3. Step 3: Cross multiply
    400,845.06x = 553,165.59 × 219,557.22
  4. Step 4: Simplify right side
    400,845.06x = 121,451,499,140.06
  5. Step 5: Solve for x
    x = 121,451,499,140.06/400,845.06
  6. Step 6: Final answer
    x = 302,988.64

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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.