Home / 282,769.76-390,231.60-155,450.72

Finding the Fourth Proportional to 282,769.76, 390,231.60 and 155,450.72

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Solution

The fourth proportional to 282,769.76, 390,231.60 and 155,450.72 is: 214,527.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,769.76 : 390,231.60 = 155,450.72 : x
  2. Step 2: Convert to fraction form
    282,769.76/390,231.60 = 155,450.72/x
  3. Step 3: Cross multiply
    282,769.76x = 390,231.60 × 155,450.72
  4. Step 4: Simplify right side
    282,769.76x = 60,661,783,186.75
  5. Step 5: Solve for x
    x = 60,661,783,186.75/282,769.76
  6. Step 6: Final answer
    x = 214,527.12

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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.