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Finding the Fourth Proportional to 370,669, 556,008.36 and 121,351

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Solution

The fourth proportional to 370,669, 556,008.36 and 121,351 is: 182,028.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,669 : 556,008.36 = 121,351 : x
  2. Step 2: Convert to fraction form
    370,669/556,008.36 = 121,351/x
  3. Step 3: Cross multiply
    370,669x = 556,008.36 × 121,351
  4. Step 4: Simplify right side
    370,669x = 67,472,170,494.36
  5. Step 5: Solve for x
    x = 67,472,170,494.36/370,669
  6. Step 6: Final answer
    x = 182,028.09

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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.