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Finding the Fourth Proportional to 219,270.30, 302,585.67 and 123,798.30

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Solution

The fourth proportional to 219,270.30, 302,585.67 and 123,798.30 is: 170,837.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,270.30 : 302,585.67 = 123,798.30 : x
  2. Step 2: Convert to fraction form
    219,270.30/302,585.67 = 123,798.30/x
  3. Step 3: Cross multiply
    219,270.30x = 302,585.67 × 123,798.30
  4. Step 4: Simplify right side
    219,270.30x = 37,459,591,550.36
  5. Step 5: Solve for x
    x = 37,459,591,550.36/219,270.30
  6. Step 6: Final answer
    x = 170,837.51

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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.