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Finding the Fourth Proportional to 370,074.74, 555,333.57 and 339,959.75

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Solution

The fourth proportional to 370,074.74, 555,333.57 and 339,959.75 is: 510,143.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,074.74 : 555,333.57 = 339,959.75 : x
  2. Step 2: Convert to fraction form
    370,074.74/555,333.57 = 339,959.75/x
  3. Step 3: Cross multiply
    370,074.74x = 555,333.57 × 339,959.75
  4. Step 4: Simplify right side
    370,074.74x = 188,791,061,623.81
  5. Step 5: Solve for x
    x = 188,791,061,623.81/370,074.74
  6. Step 6: Final answer
    x = 510,143.06

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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.