Home / 219,358.10-302,719.68-123,865.48

Finding the Fourth Proportional to 219,358.10, 302,719.68 and 123,865.48

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Solution

The fourth proportional to 219,358.10, 302,719.68 and 123,865.48 is: 170,937.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,358.10 : 302,719.68 = 123,865.48 : x
  2. Step 2: Convert to fraction form
    219,358.10/302,719.68 = 123,865.48/x
  3. Step 3: Cross multiply
    219,358.10x = 302,719.68 × 123,865.48
  4. Step 4: Simplify right side
    219,358.10x = 37,496,516,955.05
  5. Step 5: Solve for x
    x = 37,496,516,955.05/219,358.10
  6. Step 6: Final answer
    x = 170,937.46

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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.