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Finding the Fourth Proportional to 320,488.68, 480,529.50 and 170,636.52

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Solution

The fourth proportional to 320,488.68, 480,529.50 and 170,636.52 is: 255,846.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,488.68 : 480,529.50 = 170,636.52 : x
  2. Step 2: Convert to fraction form
    320,488.68/480,529.50 = 170,636.52/x
  3. Step 3: Cross multiply
    320,488.68x = 480,529.50 × 170,636.52
  4. Step 4: Simplify right side
    320,488.68x = 81,995,881,637.34
  5. Step 5: Solve for x
    x = 81,995,881,637.34/320,488.68
  6. Step 6: Final answer
    x = 255,846.42

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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.