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Finding the Fourth Proportional to 510,761.62, 766,302.81 and 211,383.19

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Solution

The fourth proportional to 510,761.62, 766,302.81 and 211,383.19 is: 317,141.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,761.62 : 766,302.81 = 211,383.19 : x
  2. Step 2: Convert to fraction form
    510,761.62/766,302.81 = 211,383.19/x
  3. Step 3: Cross multiply
    510,761.62x = 766,302.81 × 211,383.19
  4. Step 4: Simplify right side
    510,761.62x = 161,983,532,483.76
  5. Step 5: Solve for x
    x = 161,983,532,483.76/510,761.62
  6. Step 6: Final answer
    x = 317,141.16

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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.