Home / 315,322.23-435,140.60-192,773.69

Finding the Fourth Proportional to 315,322.23, 435,140.60 and 192,773.69

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Solution

The fourth proportional to 315,322.23, 435,140.60 and 192,773.69 is: 266,025.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,322.23 : 435,140.60 = 192,773.69 : x
  2. Step 2: Convert to fraction form
    315,322.23/435,140.60 = 192,773.69/x
  3. Step 3: Cross multiply
    315,322.23x = 435,140.60 × 192,773.69
  4. Step 4: Simplify right side
    315,322.23x = 83,883,655,991.24
  5. Step 5: Solve for x
    x = 83,883,655,991.24/315,322.23
  6. Step 6: Final answer
    x = 266,025.19

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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.