Home / 400,121.79-552,160.31-218,833.14

Finding the Fourth Proportional to 400,121.79, 552,160.31 and 218,833.14

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Solution

The fourth proportional to 400,121.79, 552,160.31 and 218,833.14 is: 301,985.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,121.79 : 552,160.31 = 218,833.14 : x
  2. Step 2: Convert to fraction form
    400,121.79/552,160.31 = 218,833.14/x
  3. Step 3: Cross multiply
    400,121.79x = 552,160.31 × 218,833.14
  4. Step 4: Simplify right side
    400,121.79x = 120,830,973,326.51
  5. Step 5: Solve for x
    x = 120,830,973,326.51/400,121.79
  6. Step 6: Final answer
    x = 301,985.49

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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.