Home / 231,457.50-319,396.23-129,465.24

Finding the Fourth Proportional to 231,457.50, 319,396.23 and 129,465.24

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Solution

The fourth proportional to 231,457.50, 319,396.23 and 129,465.24 is: 178,653.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,457.50 : 319,396.23 = 129,465.24 : x
  2. Step 2: Convert to fraction form
    231,457.50/319,396.23 = 129,465.24/x
  3. Step 3: Cross multiply
    231,457.50x = 319,396.23 × 129,465.24
  4. Step 4: Simplify right side
    231,457.50x = 41,350,709,572.05
  5. Step 5: Solve for x
    x = 41,350,709,572.05/231,457.50
  6. Step 6: Final answer
    x = 178,653.57

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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.