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Finding the Fourth Proportional to 400,437.92, 552,596.91 and 219,146.15

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Solution

The fourth proportional to 400,437.92, 552,596.91 and 219,146.15 is: 302,417.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,437.92 : 552,596.91 = 219,146.15 : x
  2. Step 2: Convert to fraction form
    400,437.92/552,596.91 = 219,146.15/x
  3. Step 3: Cross multiply
    400,437.92x = 552,596.91 × 219,146.15
  4. Step 4: Simplify right side
    400,437.92x = 121,099,485,328.40
  5. Step 5: Solve for x
    x = 121,099,485,328.40/400,437.92
  6. Step 6: Final answer
    x = 302,417.63

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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.