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Finding the Fourth Proportional to 313,933.80, 433,216.80 and 170,688.90

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Solution

The fourth proportional to 313,933.80, 433,216.80 and 170,688.90 is: 235,544.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,933.80 : 433,216.80 = 170,688.90 : x
  2. Step 2: Convert to fraction form
    313,933.80/433,216.80 = 170,688.90/x
  3. Step 3: Cross multiply
    313,933.80x = 433,216.80 × 170,688.90
  4. Step 4: Simplify right side
    313,933.80x = 73,945,299,053.52
  5. Step 5: Solve for x
    x = 73,945,299,053.52/313,933.80
  6. Step 6: Final answer
    x = 235,544.24

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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.