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Finding the Fourth Proportional to 400,901.74, 553,244.58 and 219,620.23

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Solution

The fourth proportional to 400,901.74, 553,244.58 and 219,620.23 is: 303,076.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,901.74 : 553,244.58 = 219,620.23 : x
  2. Step 2: Convert to fraction form
    400,901.74/553,244.58 = 219,620.23/x
  3. Step 3: Cross multiply
    400,901.74x = 553,244.58 × 219,620.23
  4. Step 4: Simplify right side
    400,901.74x = 121,503,700,522.74
  5. Step 5: Solve for x
    x = 121,503,700,522.74/400,901.74
  6. Step 6: Final answer
    x = 303,076.01

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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.