Home / 400,513.06-552,708.21-219,225.93

Finding the Fourth Proportional to 400,513.06, 552,708.21 and 219,225.93

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Solution

The fourth proportional to 400,513.06, 552,708.21 and 219,225.93 is: 302,531.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,513.06 : 552,708.21 = 219,225.93 : x
  2. Step 2: Convert to fraction form
    400,513.06/552,708.21 = 219,225.93/x
  3. Step 3: Cross multiply
    400,513.06x = 552,708.21 × 219,225.93
  4. Step 4: Simplify right side
    400,513.06x = 121,167,971,355.89
  5. Step 5: Solve for x
    x = 121,167,971,355.89/400,513.06
  6. Step 6: Final answer
    x = 302,531.89

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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.