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Finding the Fourth Proportional to 313,635.40, 432,818.93 and 170,395.41

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Solution

The fourth proportional to 313,635.40, 432,818.93 and 170,395.41 is: 235,146.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,635.40 : 432,818.93 = 170,395.41 : x
  2. Step 2: Convert to fraction form
    313,635.40/432,818.93 = 170,395.41/x
  3. Step 3: Cross multiply
    313,635.40x = 432,818.93 × 170,395.41
  4. Step 4: Simplify right side
    313,635.40x = 73,750,359,033.11
  5. Step 5: Solve for x
    x = 73,750,359,033.11/313,635.40
  6. Step 6: Final answer
    x = 235,146.79

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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.