Home / 400,178.46-552,225.66-218,855.10

Finding the Fourth Proportional to 400,178.46, 552,225.66 and 218,855.10

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Solution

The fourth proportional to 400,178.46, 552,225.66 and 218,855.10 is: 302,008.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,178.46 : 552,225.66 = 218,855.10 : x
  2. Step 2: Convert to fraction form
    400,178.46/552,225.66 = 218,855.10/x
  3. Step 3: Cross multiply
    400,178.46x = 552,225.66 × 218,855.10
  4. Step 4: Simplify right side
    400,178.46x = 120,857,402,041.87
  5. Step 5: Solve for x
    x = 120,857,402,041.87/400,178.46
  6. Step 6: Final answer
    x = 302,008.76

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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.