Home / 401,234.88-553,730.40-231,476.16

Finding the Fourth Proportional to 401,234.88, 553,730.40 and 231,476.16

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Solution

The fourth proportional to 401,234.88, 553,730.40 and 231,476.16 is: 319,452.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,234.88 : 553,730.40 = 231,476.16 : x
  2. Step 2: Convert to fraction form
    401,234.88/553,730.40 = 231,476.16/x
  3. Step 3: Cross multiply
    401,234.88x = 553,730.40 × 231,476.16
  4. Step 4: Simplify right side
    401,234.88x = 128,175,386,667.26
  5. Step 5: Solve for x
    x = 128,175,386,667.26/401,234.88
  6. Step 6: Final answer
    x = 319,452.25

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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.