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Finding the Fourth Proportional to 666,373.10, 999,558.90 and 217,093.32

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Solution

The fourth proportional to 666,373.10, 999,558.90 and 217,093.32 is: 325,639.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,373.10 : 999,558.90 = 217,093.32 : x
  2. Step 2: Convert to fraction form
    666,373.10/999,558.90 = 217,093.32/x
  3. Step 3: Cross multiply
    666,373.10x = 999,558.90 × 217,093.32
  4. Step 4: Simplify right side
    666,373.10x = 216,997,560,136.55
  5. Step 5: Solve for x
    x = 216,997,560,136.55/666,373.10
  6. Step 6: Final answer
    x = 325,639.74

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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.