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Finding the Fourth Proportional to 370,751.40, 556,132.56 and 256,786.83

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Solution

The fourth proportional to 370,751.40, 556,132.56 and 256,786.83 is: 385,184.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,751.40 : 556,132.56 = 256,786.83 : x
  2. Step 2: Convert to fraction form
    370,751.40/556,132.56 = 256,786.83/x
  3. Step 3: Cross multiply
    370,751.40x = 556,132.56 × 256,786.83
  4. Step 4: Simplify right side
    370,751.40x = 142,807,517,142.19
  5. Step 5: Solve for x
    x = 142,807,517,142.19/370,751.40
  6. Step 6: Final answer
    x = 385,184.03

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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.