Home / 401,642.34-554,261.85-231,872.82

Finding the Fourth Proportional to 401,642.34, 554,261.85 and 231,872.82

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Solution

The fourth proportional to 401,642.34, 554,261.85 and 231,872.82 is: 319,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,642.34 : 554,261.85 = 231,872.82 : x
  2. Step 2: Convert to fraction form
    401,642.34/554,261.85 = 231,872.82/x
  3. Step 3: Cross multiply
    401,642.34x = 554,261.85 × 231,872.82
  4. Step 4: Simplify right side
    401,642.34x = 128,518,256,968.96
  5. Step 5: Solve for x
    x = 128,518,256,968.96/401,642.34
  6. Step 6: Final answer
    x = 319,981.85

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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.