Home / 370,814.10-556,221.15-90,331.35

Finding the Fourth Proportional to 370,814.10, 556,221.15 and 90,331.35

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Solution

The fourth proportional to 370,814.10, 556,221.15 and 90,331.35 is: 135,497.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,814.10 : 556,221.15 = 90,331.35 : x
  2. Step 2: Convert to fraction form
    370,814.10/556,221.15 = 90,331.35/x
  3. Step 3: Cross multiply
    370,814.10x = 556,221.15 × 90,331.35
  4. Step 4: Simplify right side
    370,814.10x = 50,244,207,378.05
  5. Step 5: Solve for x
    x = 50,244,207,378.05/370,814.10
  6. Step 6: Final answer
    x = 135,497.03

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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.