Home / 311,439.48-429,786.45-168,199.53

Finding the Fourth Proportional to 311,439.48, 429,786.45 and 168,199.53

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Solution

The fourth proportional to 311,439.48, 429,786.45 and 168,199.53 is: 232,115.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,439.48 : 429,786.45 = 168,199.53 : x
  2. Step 2: Convert to fraction form
    311,439.48/429,786.45 = 168,199.53/x
  3. Step 3: Cross multiply
    311,439.48x = 429,786.45 × 168,199.53
  4. Step 4: Simplify right side
    311,439.48x = 72,289,878,890.37
  5. Step 5: Solve for x
    x = 72,289,878,890.37/311,439.48
  6. Step 6: Final answer
    x = 232,115.33

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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.