Home / 403,718.16-557,132.76-231,642.96

Finding the Fourth Proportional to 403,718.16, 557,132.76 and 231,642.96

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Solution

The fourth proportional to 403,718.16, 557,132.76 and 231,642.96 is: 319,668.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,718.16 : 557,132.76 = 231,642.96 : x
  2. Step 2: Convert to fraction form
    403,718.16/557,132.76 = 231,642.96/x
  3. Step 3: Cross multiply
    403,718.16x = 557,132.76 × 231,642.96
  4. Step 4: Simplify right side
    403,718.16x = 129,055,881,639.37
  5. Step 5: Solve for x
    x = 129,055,881,639.37/403,718.16
  6. Step 6: Final answer
    x = 319,668.26

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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.