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Finding the Fourth Proportional to 230,527.80, 345,653.46 and 90,119.16

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Solution

The fourth proportional to 230,527.80, 345,653.46 and 90,119.16 is: 135,124.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,527.80 : 345,653.46 = 90,119.16 : x
  2. Step 2: Convert to fraction form
    230,527.80/345,653.46 = 90,119.16/x
  3. Step 3: Cross multiply
    230,527.80x = 345,653.46 × 90,119.16
  4. Step 4: Simplify right side
    230,527.80x = 31,149,999,466.29
  5. Step 5: Solve for x
    x = 31,149,999,466.29/230,527.80
  6. Step 6: Final answer
    x = 135,124.70

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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.