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Finding the Fourth Proportional to 370,674, 556,015.86 and 121,356

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Solution

The fourth proportional to 370,674, 556,015.86 and 121,356 is: 182,035.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,674 : 556,015.86 = 121,356 : x
  2. Step 2: Convert to fraction form
    370,674/556,015.86 = 121,356/x
  3. Step 3: Cross multiply
    370,674x = 556,015.86 × 121,356
  4. Step 4: Simplify right side
    370,674x = 67,475,860,706.16
  5. Step 5: Solve for x
    x = 67,475,860,706.16/370,674
  6. Step 6: Final answer
    x = 182,035.59

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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.