Home / 315,022.98-434,742.21-171,790.86

Finding the Fourth Proportional to 315,022.98, 434,742.21 and 171,790.86

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Solution

The fourth proportional to 315,022.98, 434,742.21 and 171,790.86 is: 237,077.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,022.98 : 434,742.21 = 171,790.86 : x
  2. Step 2: Convert to fraction form
    315,022.98/434,742.21 = 171,790.86/x
  3. Step 3: Cross multiply
    315,022.98x = 434,742.21 × 171,790.86
  4. Step 4: Simplify right side
    315,022.98x = 74,684,738,134.20
  5. Step 5: Solve for x
    x = 74,684,738,134.20/315,022.98
  6. Step 6: Final answer
    x = 237,077.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.