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Finding the Fourth Proportional to 220,608.30, 304,430.67 and 120,006.30

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Solution

The fourth proportional to 220,608.30, 304,430.67 and 120,006.30 is: 165,603.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,608.30 : 304,430.67 = 120,006.30 : x
  2. Step 2: Convert to fraction form
    220,608.30/304,430.67 = 120,006.30/x
  3. Step 3: Cross multiply
    220,608.30x = 304,430.67 × 120,006.30
  4. Step 4: Simplify right side
    220,608.30x = 36,533,598,313.22
  5. Step 5: Solve for x
    x = 36,533,598,313.22/220,608.30
  6. Step 6: Final answer
    x = 165,603.92

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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.