Home / 313,715.28-432,918.36-170,470.56

Finding the Fourth Proportional to 313,715.28, 432,918.36 and 170,470.56

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Solution

The fourth proportional to 313,715.28, 432,918.36 and 170,470.56 is: 235,244.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,715.28 : 432,918.36 = 170,470.56 : x
  2. Step 2: Convert to fraction form
    313,715.28/432,918.36 = 170,470.56/x
  3. Step 3: Cross multiply
    313,715.28x = 432,918.36 × 170,470.56
  4. Step 4: Simplify right side
    313,715.28x = 73,799,835,263.48
  5. Step 5: Solve for x
    x = 73,799,835,263.48/313,715.28
  6. Step 6: Final answer
    x = 235,244.63

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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.