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Finding the Fourth Proportional to 230,114.60, 317,557.50 and 129,512.60

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Solution

The fourth proportional to 230,114.60, 317,557.50 and 129,512.60 is: 178,727.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,114.60 : 317,557.50 = 129,512.60 : x
  2. Step 2: Convert to fraction form
    230,114.60/317,557.50 = 129,512.60/x
  3. Step 3: Cross multiply
    230,114.60x = 317,557.50 × 129,512.60
  4. Step 4: Simplify right side
    230,114.60x = 41,127,697,474.50
  5. Step 5: Solve for x
    x = 41,127,697,474.50/230,114.60
  6. Step 6: Final answer
    x = 178,727.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.