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Finding the Fourth Proportional to 323,955.06, 447,053.63 and 180,717.50

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Solution

The fourth proportional to 323,955.06, 447,053.63 and 180,717.50 is: 249,387.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,955.06 : 447,053.63 = 180,717.50 : x
  2. Step 2: Convert to fraction form
    323,955.06/447,053.63 = 180,717.50/x
  3. Step 3: Cross multiply
    323,955.06x = 447,053.63 × 180,717.50
  4. Step 4: Simplify right side
    323,955.06x = 80,790,411,240.67
  5. Step 5: Solve for x
    x = 80,790,411,240.67/323,955.06
  6. Step 6: Final answer
    x = 249,387.71

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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.