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Finding the Fourth Proportional to 400,357.10, 552,488.10 and 219,066.96

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Solution

The fourth proportional to 400,357.10, 552,488.10 and 219,066.96 is: 302,309.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,357.10 : 552,488.10 = 219,066.96 : x
  2. Step 2: Convert to fraction form
    400,357.10/552,488.10 = 219,066.96/x
  3. Step 3: Cross multiply
    400,357.10x = 552,488.10 × 219,066.96
  4. Step 4: Simplify right side
    400,357.10x = 121,031,888,503.18
  5. Step 5: Solve for x
    x = 121,031,888,503.18/400,357.10
  6. Step 6: Final answer
    x = 302,309.83

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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.