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Finding the Fourth Proportional to 401,457.62, 554,036.04 and 231,702.68

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Solution

The fourth proportional to 401,457.62, 554,036.04 and 231,702.68 is: 319,763.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,457.62 : 554,036.04 = 231,702.68 : x
  2. Step 2: Convert to fraction form
    401,457.62/554,036.04 = 231,702.68/x
  3. Step 3: Cross multiply
    401,457.62x = 554,036.04 × 231,702.68
  4. Step 4: Simplify right side
    401,457.62x = 128,371,635,284.59
  5. Step 5: Solve for x
    x = 128,371,635,284.59/401,457.62
  6. Step 6: Final answer
    x = 319,763.85

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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.