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Finding the Fourth Proportional to 352,653.62, 486,692.15 and 199,718.87

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Solution

The fourth proportional to 352,653.62, 486,692.15 and 199,718.87 is: 275,629.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,653.62 : 486,692.15 = 199,718.87 : x
  2. Step 2: Convert to fraction form
    352,653.62/486,692.15 = 199,718.87/x
  3. Step 3: Cross multiply
    352,653.62x = 486,692.15 × 199,718.87
  4. Step 4: Simplify right side
    352,653.62x = 97,201,602,803.82
  5. Step 5: Solve for x
    x = 97,201,602,803.82/352,653.62
  6. Step 6: Final answer
    x = 275,629.11

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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.