Home / 401,436.12-554,006.34-231,681.18

Finding the Fourth Proportional to 401,436.12, 554,006.34 and 231,681.18

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Solution

The fourth proportional to 401,436.12, 554,006.34 and 231,681.18 is: 319,734.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,436.12 : 554,006.34 = 231,681.18 : x
  2. Step 2: Convert to fraction form
    401,436.12/554,006.34 = 231,681.18/x
  3. Step 3: Cross multiply
    401,436.12x = 554,006.34 × 231,681.18
  4. Step 4: Simplify right side
    401,436.12x = 128,352,842,578.68
  5. Step 5: Solve for x
    x = 128,352,842,578.68/401,436.12
  6. Step 6: Final answer
    x = 319,734.16

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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.