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Finding the Fourth Proportional to 510,108.60, 765,138.60 and 173,116.20

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Solution

The fourth proportional to 510,108.60, 765,138.60 and 173,116.20 is: 259,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,108.60 : 765,138.60 = 173,116.20 : x
  2. Step 2: Convert to fraction form
    510,108.60/765,138.60 = 173,116.20/x
  3. Step 3: Cross multiply
    510,108.60x = 765,138.60 × 173,116.20
  4. Step 4: Simplify right side
    510,108.60x = 132,457,886,905.32
  5. Step 5: Solve for x
    x = 132,457,886,905.32/510,108.60
  6. Step 6: Final answer
    x = 259,666.05

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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.