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Finding the Fourth Proportional to 320,304.38, 480,746.34 and 170,671.05

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Solution

The fourth proportional to 320,304.38, 480,746.34 and 170,671.05 is: 256,160.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,304.38 : 480,746.34 = 170,671.05 : x
  2. Step 2: Convert to fraction form
    320,304.38/480,746.34 = 170,671.05/x
  3. Step 3: Cross multiply
    320,304.38x = 480,746.34 × 170,671.05
  4. Step 4: Simplify right side
    320,304.38x = 82,049,482,631.46
  5. Step 5: Solve for x
    x = 82,049,482,631.46/320,304.38
  6. Step 6: Final answer
    x = 256,160.98

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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.