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Finding the Fourth Proportional to 216,859.75, 299,297.88 and 124,961.16

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Solution

The fourth proportional to 216,859.75, 299,297.88 and 124,961.16 is: 172,464.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,859.75 : 299,297.88 = 124,961.16 : x
  2. Step 2: Convert to fraction form
    216,859.75/299,297.88 = 124,961.16/x
  3. Step 3: Cross multiply
    216,859.75x = 299,297.88 × 124,961.16
  4. Step 4: Simplify right side
    216,859.75x = 37,400,609,460.38
  5. Step 5: Solve for x
    x = 37,400,609,460.38/216,859.75
  6. Step 6: Final answer
    x = 172,464.50

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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.