Home / 313,664.40-432,859.56-170,424.72

Finding the Fourth Proportional to 313,664.40, 432,859.56 and 170,424.72

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Solution

The fourth proportional to 313,664.40, 432,859.56 and 170,424.72 is: 235,187.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,664.40 : 432,859.56 = 170,424.72 : x
  2. Step 2: Convert to fraction form
    313,664.40/432,859.56 = 170,424.72/x
  3. Step 3: Cross multiply
    313,664.40x = 432,859.56 × 170,424.72
  4. Step 4: Simplify right side
    313,664.40x = 73,769,969,312.32
  5. Step 5: Solve for x
    x = 73,769,969,312.32/313,664.40
  6. Step 6: Final answer
    x = 235,187.57

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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.