Home / 230,900.55-318,715.35-135,445.83

Finding the Fourth Proportional to 230,900.55, 318,715.35 and 135,445.83

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Solution

The fourth proportional to 230,900.55, 318,715.35 and 135,445.83 is: 186,957.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,900.55 : 318,715.35 = 135,445.83 : x
  2. Step 2: Convert to fraction form
    230,900.55/318,715.35 = 135,445.83/x
  3. Step 3: Cross multiply
    230,900.55x = 318,715.35 × 135,445.83
  4. Step 4: Simplify right side
    230,900.55x = 43,168,665,114.49
  5. Step 5: Solve for x
    x = 43,168,665,114.49/230,900.55
  6. Step 6: Final answer
    x = 186,957.83

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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.