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Finding the Fourth Proportional to 370,852.40, 556,451.40 and 277,540.40

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Solution

The fourth proportional to 370,852.40, 556,451.40 and 277,540.40 is: 416,439.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,852.40 : 556,451.40 = 277,540.40 : x
  2. Step 2: Convert to fraction form
    370,852.40/556,451.40 = 277,540.40/x
  3. Step 3: Cross multiply
    370,852.40x = 556,451.40 × 277,540.40
  4. Step 4: Simplify right side
    370,852.40x = 154,437,744,136.56
  5. Step 5: Solve for x
    x = 154,437,744,136.56/370,852.40
  6. Step 6: Final answer
    x = 416,439.92

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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.