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Finding the Fourth Proportional to 400,437.56, 552,598.63 and 219,146.19

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Solution

The fourth proportional to 400,437.56, 552,598.63 and 219,146.19 is: 302,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,437.56 : 552,598.63 = 219,146.19 : x
  2. Step 2: Convert to fraction form
    400,437.56/552,598.63 = 219,146.19/x
  3. Step 3: Cross multiply
    400,437.56x = 552,598.63 × 219,146.19
  4. Step 4: Simplify right side
    400,437.56x = 121,099,883,815.85
  5. Step 5: Solve for x
    x = 121,099,883,815.85/400,437.56
  6. Step 6: Final answer
    x = 302,418.90

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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.