Home / 313,677.48-432,868.68-170,438.55

Finding the Fourth Proportional to 313,677.48, 432,868.68 and 170,438.55

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Solution

The fourth proportional to 313,677.48, 432,868.68 and 170,438.55 is: 235,201.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,677.48 : 432,868.68 = 170,438.55 : x
  2. Step 2: Convert to fraction form
    313,677.48/432,868.68 = 170,438.55/x
  3. Step 3: Cross multiply
    313,677.48x = 432,868.68 × 170,438.55
  4. Step 4: Simplify right side
    313,677.48x = 73,777,510,159.61
  5. Step 5: Solve for x
    x = 73,777,510,159.61/313,677.48
  6. Step 6: Final answer
    x = 235,201.81

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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.