Home / 311,391.27-429,631.02-175,377.60

Finding the Fourth Proportional to 311,391.27, 429,631.02 and 175,377.60

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Solution

The fourth proportional to 311,391.27, 429,631.02 and 175,377.60 is: 241,971.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,391.27 : 429,631.02 = 175,377.60 : x
  2. Step 2: Convert to fraction form
    311,391.27/429,631.02 = 175,377.60/x
  3. Step 3: Cross multiply
    311,391.27x = 429,631.02 × 175,377.60
  4. Step 4: Simplify right side
    311,391.27x = 75,347,657,173.15
  5. Step 5: Solve for x
    x = 75,347,657,173.15/311,391.27
  6. Step 6: Final answer
    x = 241,971.00

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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.