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Finding the Fourth Proportional to 478,983.28, 718,085.28 and 179,296

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Solution

The fourth proportional to 478,983.28, 718,085.28 and 179,296 is: 268,798.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,983.28 : 718,085.28 = 179,296 : x
  2. Step 2: Convert to fraction form
    478,983.28/718,085.28 = 179,296/x
  3. Step 3: Cross multiply
    478,983.28x = 718,085.28 × 179,296
  4. Step 4: Simplify right side
    478,983.28x = 128,749,818,362.88
  5. Step 5: Solve for x
    x = 128,749,818,362.88/478,983.28
  6. Step 6: Final answer
    x = 268,798.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.