Home / 401,454.23-554,005.98-231,688.35

Finding the Fourth Proportional to 401,454.23, 554,005.98 and 231,688.35

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Solution

The fourth proportional to 401,454.23, 554,005.98 and 231,688.35 is: 319,729.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,454.23 : 554,005.98 = 231,688.35 : x
  2. Step 2: Convert to fraction form
    401,454.23/554,005.98 = 231,688.35/x
  3. Step 3: Cross multiply
    401,454.23x = 554,005.98 × 231,688.35
  4. Step 4: Simplify right side
    401,454.23x = 128,356,731,396.33
  5. Step 5: Solve for x
    x = 128,356,731,396.33/401,454.23
  6. Step 6: Final answer
    x = 319,729.43

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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.