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Finding the Fourth Proportional to 313,275.77, 432,321.06 and 170,035.88

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Solution

The fourth proportional to 313,275.77, 432,321.06 and 170,035.88 is: 234,649.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,275.77 : 432,321.06 = 170,035.88 : x
  2. Step 2: Convert to fraction form
    313,275.77/432,321.06 = 170,035.88/x
  3. Step 3: Cross multiply
    313,275.77x = 432,321.06 × 170,035.88
  4. Step 4: Simplify right side
    313,275.77x = 73,510,091,879.63
  5. Step 5: Solve for x
    x = 73,510,091,879.63/313,275.77
  6. Step 6: Final answer
    x = 234,649.78

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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.