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Finding the Fourth Proportional to 401,752.08, 554,422.32 and 220,458.90

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Solution

The fourth proportional to 401,752.08, 554,422.32 and 220,458.90 is: 304,235.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,752.08 : 554,422.32 = 220,458.90 : x
  2. Step 2: Convert to fraction form
    401,752.08/554,422.32 = 220,458.90/x
  3. Step 3: Cross multiply
    401,752.08x = 554,422.32 × 220,458.90
  4. Step 4: Simplify right side
    401,752.08x = 122,227,334,802.65
  5. Step 5: Solve for x
    x = 122,227,334,802.65/401,752.08
  6. Step 6: Final answer
    x = 304,235.72

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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.