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Finding the Fourth Proportional to 401,271.57, 553,751.24 and 219,980.21

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Solution

The fourth proportional to 401,271.57, 553,751.24 and 219,980.21 is: 303,570.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,271.57 : 553,751.24 = 219,980.21 : x
  2. Step 2: Convert to fraction form
    401,271.57/553,751.24 = 219,980.21/x
  3. Step 3: Cross multiply
    401,271.57x = 553,751.24 × 219,980.21
  4. Step 4: Simplify right side
    401,271.57x = 121,814,310,194.30
  5. Step 5: Solve for x
    x = 121,814,310,194.30/401,271.57
  6. Step 6: Final answer
    x = 303,570.75

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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.