Home / 400,181.76-552,253.68-218,897.28

Finding the Fourth Proportional to 400,181.76, 552,253.68 and 218,897.28

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Solution

The fourth proportional to 400,181.76, 552,253.68 and 218,897.28 is: 302,079.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,181.76 : 552,253.68 = 218,897.28 : x
  2. Step 2: Convert to fraction form
    400,181.76/552,253.68 = 218,897.28/x
  3. Step 3: Cross multiply
    400,181.76x = 552,253.68 × 218,897.28
  4. Step 4: Simplify right side
    400,181.76x = 120,886,828,421.99
  5. Step 5: Solve for x
    x = 120,886,828,421.99/400,181.76
  6. Step 6: Final answer
    x = 302,079.81

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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.