Home / 313,629.40-432,810.65-170,389.41

Finding the Fourth Proportional to 313,629.40, 432,810.65 and 170,389.41

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Solution

The fourth proportional to 313,629.40, 432,810.65 and 170,389.41 is: 235,138.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,629.40 : 432,810.65 = 170,389.41 : x
  2. Step 2: Convert to fraction form
    313,629.40/432,810.65 = 170,389.41/x
  3. Step 3: Cross multiply
    313,629.40x = 432,810.65 × 170,389.41
  4. Step 4: Simplify right side
    313,629.40x = 73,746,351,295.22
  5. Step 5: Solve for x
    x = 73,746,351,295.22/313,629.40
  6. Step 6: Final answer
    x = 235,138.51

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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.