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Finding the Fourth Proportional to 256,656.40, 384,984.60 and 230,851.60

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Solution

The fourth proportional to 256,656.40, 384,984.60 and 230,851.60 is: 346,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,656.40 : 384,984.60 = 230,851.60 : x
  2. Step 2: Convert to fraction form
    256,656.40/384,984.60 = 230,851.60/x
  3. Step 3: Cross multiply
    256,656.40x = 384,984.60 × 230,851.60
  4. Step 4: Simplify right side
    256,656.40x = 88,874,310,885.36
  5. Step 5: Solve for x
    x = 88,874,310,885.36/256,656.40
  6. Step 6: Final answer
    x = 346,277.40

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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.