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Finding the Fourth Proportional to 266,988.32, 400,060.80 and 216,824.24

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Solution

The fourth proportional to 266,988.32, 400,060.80 and 216,824.24 is: 324,893.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,988.32 : 400,060.80 = 216,824.24 : x
  2. Step 2: Convert to fraction form
    266,988.32/400,060.80 = 216,824.24/x
  3. Step 3: Cross multiply
    266,988.32x = 400,060.80 × 216,824.24
  4. Step 4: Simplify right side
    266,988.32x = 86,742,878,913.79
  5. Step 5: Solve for x
    x = 86,742,878,913.79/266,988.32
  6. Step 6: Final answer
    x = 324,893.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.