Home / 306,849.42-423,448.79-170,880.39

Finding the Fourth Proportional to 306,849.42, 423,448.79 and 170,880.39

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Solution

The fourth proportional to 306,849.42, 423,448.79 and 170,880.39 is: 235,813.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,849.42 : 423,448.79 = 170,880.39 : x
  2. Step 2: Convert to fraction form
    306,849.42/423,448.79 = 170,880.39/x
  3. Step 3: Cross multiply
    306,849.42x = 423,448.79 × 170,880.39
  4. Step 4: Simplify right side
    306,849.42x = 72,359,093,525.83
  5. Step 5: Solve for x
    x = 72,359,093,525.83/306,849.42
  6. Step 6: Final answer
    x = 235,813.04

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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.