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Finding the Fourth Proportional to 320,729.49, 480,952.08 and 170,941.86

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Solution

The fourth proportional to 320,729.49, 480,952.08 and 170,941.86 is: 256,337.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,729.49 : 480,952.08 = 170,941.86 : x
  2. Step 2: Convert to fraction form
    320,729.49/480,952.08 = 170,941.86/x
  3. Step 3: Cross multiply
    320,729.49x = 480,952.08 × 170,941.86
  4. Step 4: Simplify right side
    320,729.49x = 82,214,843,126.07
  5. Step 5: Solve for x
    x = 82,214,843,126.07/320,729.49
  6. Step 6: Final answer
    x = 256,337.02

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1.5x scale

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.