Home / 510,905.40-766,358.10-131,825.40

Finding the Fourth Proportional to 510,905.40, 766,358.10 and 131,825.40

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Solution

The fourth proportional to 510,905.40, 766,358.10 and 131,825.40 is: 197,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,905.40 : 766,358.10 = 131,825.40 : x
  2. Step 2: Convert to fraction form
    510,905.40/766,358.10 = 131,825.40/x
  3. Step 3: Cross multiply
    510,905.40x = 766,358.10 × 131,825.40
  4. Step 4: Simplify right side
    510,905.40x = 101,025,463,075.74
  5. Step 5: Solve for x
    x = 101,025,463,075.74/510,905.40
  6. Step 6: Final answer
    x = 197,738.10

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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.