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Finding the Fourth Proportional to 215,699.17, 297,651.78 and 118,898.80

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Solution

The fourth proportional to 215,699.17, 297,651.78 and 118,898.80 is: 164,073.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,699.17 : 297,651.78 = 118,898.80 : x
  2. Step 2: Convert to fraction form
    215,699.17/297,651.78 = 118,898.80/x
  3. Step 3: Cross multiply
    215,699.17x = 297,651.78 × 118,898.80
  4. Step 4: Simplify right side
    215,699.17x = 35,390,439,459.86
  5. Step 5: Solve for x
    x = 35,390,439,459.86/215,699.17
  6. Step 6: Final answer
    x = 164,073.14

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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.