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Finding the Fourth Proportional to 235,639.80, 353,459.70 and 123,276.60

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Solution

The fourth proportional to 235,639.80, 353,459.70 and 123,276.60 is: 184,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,639.80 : 353,459.70 = 123,276.60 : x
  2. Step 2: Convert to fraction form
    235,639.80/353,459.70 = 123,276.60/x
  3. Step 3: Cross multiply
    235,639.80x = 353,459.70 × 123,276.60
  4. Step 4: Simplify right side
    235,639.80x = 43,573,310,053.02
  5. Step 5: Solve for x
    x = 43,573,310,053.02/235,639.80
  6. Step 6: Final answer
    x = 184,914.90

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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.