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Finding the Fourth Proportional to 220,313.45, 304,031.48 and 124,819.92

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Solution

The fourth proportional to 220,313.45, 304,031.48 and 124,819.92 is: 172,250.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,313.45 : 304,031.48 = 124,819.92 : x
  2. Step 2: Convert to fraction form
    220,313.45/304,031.48 = 124,819.92/x
  3. Step 3: Cross multiply
    220,313.45x = 304,031.48 × 124,819.92
  4. Step 4: Simplify right side
    220,313.45x = 37,949,184,386.98
  5. Step 5: Solve for x
    x = 37,949,184,386.98/220,313.45
  6. Step 6: Final answer
    x = 172,250.87

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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.