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Finding the Fourth Proportional to 221,342.70, 332,186.85 and 103,028.70

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Solution

The fourth proportional to 221,342.70, 332,186.85 and 103,028.70 is: 154,623.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,342.70 : 332,186.85 = 103,028.70 : x
  2. Step 2: Convert to fraction form
    221,342.70/332,186.85 = 103,028.70/x
  3. Step 3: Cross multiply
    221,342.70x = 332,186.85 × 103,028.70
  4. Step 4: Simplify right side
    221,342.70x = 34,224,779,312.60
  5. Step 5: Solve for x
    x = 34,224,779,312.60/221,342.70
  6. Step 6: Final answer
    x = 154,623.48

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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.