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Finding the Fourth Proportional to 279,037.22, 385,087.11 and 151,710.08

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Solution

The fourth proportional to 279,037.22, 385,087.11 and 151,710.08 is: 209,368.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,037.22 : 385,087.11 = 151,710.08 : x
  2. Step 2: Convert to fraction form
    279,037.22/385,087.11 = 151,710.08/x
  3. Step 3: Cross multiply
    279,037.22x = 385,087.11 × 151,710.08
  4. Step 4: Simplify right side
    279,037.22x = 58,421,596,265.07
  5. Step 5: Solve for x
    x = 58,421,596,265.07/279,037.22
  6. Step 6: Final answer
    x = 209,368.47

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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.