Home / 230,485.32-318,046.50-128,501.19

Finding the Fourth Proportional to 230,485.32, 318,046.50 and 128,501.19

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Solution

The fourth proportional to 230,485.32, 318,046.50 and 128,501.19 is: 177,318.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,485.32 : 318,046.50 = 128,501.19 : x
  2. Step 2: Convert to fraction form
    230,485.32/318,046.50 = 128,501.19/x
  3. Step 3: Cross multiply
    230,485.32x = 318,046.50 × 128,501.19
  4. Step 4: Simplify right side
    230,485.32x = 40,869,353,725.34
  5. Step 5: Solve for x
    x = 40,869,353,725.34/230,485.32
  6. Step 6: Final answer
    x = 177,318.68

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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.