Home / 510,917.40-766,376.10-131,837.40

Finding the Fourth Proportional to 510,917.40, 766,376.10 and 131,837.40

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Solution

The fourth proportional to 510,917.40, 766,376.10 and 131,837.40 is: 197,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,917.40 : 766,376.10 = 131,837.40 : x
  2. Step 2: Convert to fraction form
    510,917.40/766,376.10 = 131,837.40/x
  3. Step 3: Cross multiply
    510,917.40x = 766,376.10 × 131,837.40
  4. Step 4: Simplify right side
    510,917.40x = 101,037,032,446.14
  5. Step 5: Solve for x
    x = 101,037,032,446.14/510,917.40
  6. Step 6: Final answer
    x = 197,756.10

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Similar ratio
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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.