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Finding the Fourth Proportional to 221,068.95, 331,658.10 and 71,325.06

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Solution

The fourth proportional to 221,068.95, 331,658.10 and 71,325.06 is: 107,005.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,068.95 : 331,658.10 = 71,325.06 : x
  2. Step 2: Convert to fraction form
    221,068.95/331,658.10 = 71,325.06/x
  3. Step 3: Cross multiply
    221,068.95x = 331,658.10 × 71,325.06
  4. Step 4: Simplify right side
    221,068.95x = 23,655,533,881.99
  5. Step 5: Solve for x
    x = 23,655,533,881.99/221,068.95
  6. Step 6: Final answer
    x = 107,005.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.