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Finding the Fourth Proportional to 313,383.12, 470,014.56 and 88,689.30

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Solution

The fourth proportional to 313,383.12, 470,014.56 and 88,689.30 is: 133,016.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,383.12 : 470,014.56 = 88,689.30 : x
  2. Step 2: Convert to fraction form
    313,383.12/470,014.56 = 88,689.30/x
  3. Step 3: Cross multiply
    313,383.12x = 470,014.56 × 88,689.30
  4. Step 4: Simplify right side
    313,383.12x = 41,685,262,316.21
  5. Step 5: Solve for x
    x = 41,685,262,316.21/313,383.12
  6. Step 6: Final answer
    x = 133,016.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.