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Finding the Fourth Proportional to 211,184.40, 316,743.58 and 69,028.60

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Solution

The fourth proportional to 211,184.40, 316,743.58 and 69,028.60 is: 103,532.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,184.40 : 316,743.58 = 69,028.60 : x
  2. Step 2: Convert to fraction form
    211,184.40/316,743.58 = 69,028.60/x
  3. Step 3: Cross multiply
    211,184.40x = 316,743.58 × 69,028.60
  4. Step 4: Simplify right side
    211,184.40x = 21,864,365,886.39
  5. Step 5: Solve for x
    x = 21,864,365,886.39/211,184.40
  6. Step 6: Final answer
    x = 103,532.11

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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.