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Finding the Fourth Proportional to 170,752.60, 256,205.70 and 77,210.20

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Solution

The fourth proportional to 170,752.60, 256,205.70 and 77,210.20 is: 115,850.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,752.60 : 256,205.70 = 77,210.20 : x
  2. Step 2: Convert to fraction form
    170,752.60/256,205.70 = 77,210.20/x
  3. Step 3: Cross multiply
    170,752.60x = 256,205.70 × 77,210.20
  4. Step 4: Simplify right side
    170,752.60x = 19,781,693,338.14
  5. Step 5: Solve for x
    x = 19,781,693,338.14/170,752.60
  6. Step 6: Final answer
    x = 115,850.03

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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.