Home / 217,555.32-300,226.05-122,070.90

Finding the Fourth Proportional to 217,555.32, 300,226.05 and 122,070.90

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Solution

The fourth proportional to 217,555.32, 300,226.05 and 122,070.90 is: 168,457.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,555.32 : 300,226.05 = 122,070.90 : x
  2. Step 2: Convert to fraction form
    217,555.32/300,226.05 = 122,070.90/x
  3. Step 3: Cross multiply
    217,555.32x = 300,226.05 × 122,070.90
  4. Step 4: Simplify right side
    217,555.32x = 36,648,864,126.95
  5. Step 5: Solve for x
    x = 36,648,864,126.95/217,555.32
  6. Step 6: Final answer
    x = 168,457.68

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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.