Home / 401,290.12-553,780.24-219,998.16

Finding the Fourth Proportional to 401,290.12, 553,780.24 and 219,998.16

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Solution

The fourth proportional to 401,290.12, 553,780.24 and 219,998.16 is: 303,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,290.12 : 553,780.24 = 219,998.16 : x
  2. Step 2: Convert to fraction form
    401,290.12/553,780.24 = 219,998.16/x
  3. Step 3: Cross multiply
    401,290.12x = 553,780.24 × 219,998.16
  4. Step 4: Simplify right side
    401,290.12x = 121,830,633,294.36
  5. Step 5: Solve for x
    x = 121,830,633,294.36/401,290.12
  6. Step 6: Final answer
    x = 303,597.39

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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.