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Finding the Fourth Proportional to 321,293.52, 443,432.88 and 185,302.08

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Solution

The fourth proportional to 321,293.52, 443,432.88 and 185,302.08 is: 255,744.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,293.52 : 443,432.88 = 185,302.08 : x
  2. Step 2: Convert to fraction form
    321,293.52/443,432.88 = 185,302.08/x
  3. Step 3: Cross multiply
    321,293.52x = 443,432.88 × 185,302.08
  4. Step 4: Simplify right side
    321,293.52x = 82,169,035,004.39
  5. Step 5: Solve for x
    x = 82,169,035,004.39/321,293.52
  6. Step 6: Final answer
    x = 255,744.45

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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.