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Finding the Fourth Proportional to 320,794.79, 480,973.46 and 162,718.43

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Solution

The fourth proportional to 320,794.79, 480,973.46 and 162,718.43 is: 243,966.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,794.79 : 480,973.46 = 162,718.43 : x
  2. Step 2: Convert to fraction form
    320,794.79/480,973.46 = 162,718.43/x
  3. Step 3: Cross multiply
    320,794.79x = 480,973.46 × 162,718.43
  4. Step 4: Simplify right side
    320,794.79x = 78,263,243,064.41
  5. Step 5: Solve for x
    x = 78,263,243,064.41/320,794.79
  6. Step 6: Final answer
    x = 243,966.69

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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.