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Finding the Fourth Proportional to 313,392.64, 432,477.39 and 170,158.18

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Solution

The fourth proportional to 313,392.64, 432,477.39 and 170,158.18 is: 234,815.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,392.64 : 432,477.39 = 170,158.18 : x
  2. Step 2: Convert to fraction form
    313,392.64/432,477.39 = 170,158.18/x
  3. Step 3: Cross multiply
    313,392.64x = 432,477.39 × 170,158.18
  4. Step 4: Simplify right side
    313,392.64x = 73,589,565,573.55
  5. Step 5: Solve for x
    x = 73,589,565,573.55/313,392.64
  6. Step 6: Final answer
    x = 234,815.87

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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.