Home / 219,142.08-302,434.56-123,652.80

Finding the Fourth Proportional to 219,142.08, 302,434.56 and 123,652.80

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Solution

The fourth proportional to 219,142.08, 302,434.56 and 123,652.80 is: 170,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,142.08 : 302,434.56 = 123,652.80 : x
  2. Step 2: Convert to fraction form
    219,142.08/302,434.56 = 123,652.80/x
  3. Step 3: Cross multiply
    219,142.08x = 302,434.56 × 123,652.80
  4. Step 4: Simplify right side
    219,142.08x = 37,396,880,160.77
  5. Step 5: Solve for x
    x = 37,396,880,160.77/219,142.08
  6. Step 6: Final answer
    x = 170,651.30

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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.