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Finding the Fourth Proportional to 153,249.17, 211,484.89 and 85,269.00

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Solution

The fourth proportional to 153,249.17, 211,484.89 and 85,269.00 is: 117,671.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,249.17 : 211,484.89 = 85,269.00 : x
  2. Step 2: Convert to fraction form
    153,249.17/211,484.89 = 85,269.00/x
  3. Step 3: Cross multiply
    153,249.17x = 211,484.89 × 85,269.00
  4. Step 4: Simplify right side
    153,249.17x = 18,033,106,164.93
  5. Step 5: Solve for x
    x = 18,033,106,164.93/153,249.17
  6. Step 6: Final answer
    x = 117,671.81

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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.