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Finding the Fourth Proportional to 216,853.44, 299,259.27 and 121,369.02

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Solution

The fourth proportional to 216,853.44, 299,259.27 and 121,369.02 is: 167,490.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,853.44 : 299,259.27 = 121,369.02 : x
  2. Step 2: Convert to fraction form
    216,853.44/299,259.27 = 121,369.02/x
  3. Step 3: Cross multiply
    216,853.44x = 299,259.27 × 121,369.02
  4. Step 4: Simplify right side
    216,853.44x = 36,320,804,325.82
  5. Step 5: Solve for x
    x = 36,320,804,325.82/216,853.44
  6. Step 6: Final answer
    x = 167,490.10

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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.