Home / 315,022.48-434,741.52-171,790.36

Finding the Fourth Proportional to 315,022.48, 434,741.52 and 171,790.36

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Solution

The fourth proportional to 315,022.48, 434,741.52 and 171,790.36 is: 237,076.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,022.48 : 434,741.52 = 171,790.36 : x
  2. Step 2: Convert to fraction form
    315,022.48/434,741.52 = 171,790.36/x
  3. Step 3: Cross multiply
    315,022.48x = 434,741.52 × 171,790.36
  4. Step 4: Simplify right side
    315,022.48x = 74,684,402,227.75
  5. Step 5: Solve for x
    x = 74,684,402,227.75/315,022.48
  6. Step 6: Final answer
    x = 237,076.42

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1.5x scale

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.