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Finding the Fourth Proportional to 510,415.77, 765,738.99 and 168,858.39

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Solution

The fourth proportional to 510,415.77, 765,738.99 and 168,858.39 is: 253,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,415.77 : 765,738.99 = 168,858.39 : x
  2. Step 2: Convert to fraction form
    510,415.77/765,738.99 = 168,858.39/x
  3. Step 3: Cross multiply
    510,415.77x = 765,738.99 × 168,858.39
  4. Step 4: Simplify right side
    510,415.77x = 129,301,450,140.11
  5. Step 5: Solve for x
    x = 129,301,450,140.11/510,415.77
  6. Step 6: Final answer
    x = 253,325.74

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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.