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Finding the Fourth Proportional to 326,959.68, 451,206.72 and 183,720

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Solution

The fourth proportional to 326,959.68, 451,206.72 and 183,720 is: 253,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,959.68 : 451,206.72 = 183,720 : x
  2. Step 2: Convert to fraction form
    326,959.68/451,206.72 = 183,720/x
  3. Step 3: Cross multiply
    326,959.68x = 451,206.72 × 183,720
  4. Step 4: Simplify right side
    326,959.68x = 82,895,698,598.40
  5. Step 5: Solve for x
    x = 82,895,698,598.40/326,959.68
  6. Step 6: Final answer
    x = 253,534.93

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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.