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Finding the Fourth Proportional to 308,029.66, 425,280.84 and 275,708.22

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Solution

The fourth proportional to 308,029.66, 425,280.84 and 275,708.22 is: 380,656.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,029.66 : 425,280.84 = 275,708.22 : x
  2. Step 2: Convert to fraction form
    308,029.66/425,280.84 = 275,708.22/x
  3. Step 3: Cross multiply
    308,029.66x = 425,280.84 × 275,708.22
  4. Step 4: Simplify right side
    308,029.66x = 117,253,423,396.51
  5. Step 5: Solve for x
    x = 117,253,423,396.51/308,029.66
  6. Step 6: Final answer
    x = 380,656.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.