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Finding the Fourth Proportional to 510,440.16, 765,601.92 and 136,492.32

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Solution

The fourth proportional to 510,440.16, 765,601.92 and 136,492.32 is: 204,722.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,440.16 : 765,601.92 = 136,492.32 : x
  2. Step 2: Convert to fraction form
    510,440.16/765,601.92 = 136,492.32/x
  3. Step 3: Cross multiply
    510,440.16x = 765,601.92 × 136,492.32
  4. Step 4: Simplify right side
    510,440.16x = 104,498,782,257.25
  5. Step 5: Solve for x
    x = 104,498,782,257.25/510,440.16
  6. Step 6: Final answer
    x = 204,722.89

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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.