Home / 313,669.87-432,868.35-170,432.30

Finding the Fourth Proportional to 313,669.87, 432,868.35 and 170,432.30

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Solution

The fourth proportional to 313,669.87, 432,868.35 and 170,432.30 is: 235,198.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,669.87 : 432,868.35 = 170,432.30 : x
  2. Step 2: Convert to fraction form
    313,669.87/432,868.35 = 170,432.30/x
  3. Step 3: Cross multiply
    313,669.87x = 432,868.35 × 170,432.30
  4. Step 4: Simplify right side
    313,669.87x = 73,774,750,209.00
  5. Step 5: Solve for x
    x = 73,774,750,209.00/313,669.87
  6. Step 6: Final answer
    x = 235,198.72

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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.