Home / 315,173.47-434,938.78-171,933.47

Finding the Fourth Proportional to 315,173.47, 434,938.78 and 171,933.47

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Solution

The fourth proportional to 315,173.47, 434,938.78 and 171,933.47 is: 237,267.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,173.47 : 434,938.78 = 171,933.47 : x
  2. Step 2: Convert to fraction form
    315,173.47/434,938.78 = 171,933.47/x
  3. Step 3: Cross multiply
    315,173.47x = 434,938.78 × 171,933.47
  4. Step 4: Simplify right side
    315,173.47x = 74,780,533,682.97
  5. Step 5: Solve for x
    x = 74,780,533,682.97/315,173.47
  6. Step 6: Final answer
    x = 237,267.86

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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.