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Finding the Fourth Proportional to 217,150.66, 299,751.60 and 211,158.28

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Solution

The fourth proportional to 217,150.66, 299,751.60 and 211,158.28 is: 291,479.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,150.66 : 299,751.60 = 211,158.28 : x
  2. Step 2: Convert to fraction form
    217,150.66/299,751.60 = 211,158.28/x
  3. Step 3: Cross multiply
    217,150.66x = 299,751.60 × 211,158.28
  4. Step 4: Simplify right side
    217,150.66x = 63,295,032,283.25
  5. Step 5: Solve for x
    x = 63,295,032,283.25/217,150.66
  6. Step 6: Final answer
    x = 291,479.81

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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.