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Finding the Fourth Proportional to 219,278.94, 302,613.63 and 123,788.94

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Solution

The fourth proportional to 219,278.94, 302,613.63 and 123,788.94 is: 170,833.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,278.94 : 302,613.63 = 123,788.94 : x
  2. Step 2: Convert to fraction form
    219,278.94/302,613.63 = 123,788.94/x
  3. Step 3: Cross multiply
    219,278.94x = 302,613.63 × 123,788.94
  4. Step 4: Simplify right side
    219,278.94x = 37,460,220,487.25
  5. Step 5: Solve for x
    x = 37,460,220,487.25/219,278.94
  6. Step 6: Final answer
    x = 170,833.64

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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.