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Finding the Fourth Proportional to 256,304.40, 384,456.60 and 167,830.80

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Solution

The fourth proportional to 256,304.40, 384,456.60 and 167,830.80 is: 251,746.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,304.40 : 384,456.60 = 167,830.80 : x
  2. Step 2: Convert to fraction form
    256,304.40/384,456.60 = 167,830.80/x
  3. Step 3: Cross multiply
    256,304.40x = 384,456.60 × 167,830.80
  4. Step 4: Simplify right side
    256,304.40x = 64,523,658,743.28
  5. Step 5: Solve for x
    x = 64,523,658,743.28/256,304.40
  6. Step 6: Final answer
    x = 251,746.20

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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.