Home / 282,769.22-390,211.62-155,443.98

Finding the Fourth Proportional to 282,769.22, 390,211.62 and 155,443.98

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Solution

The fourth proportional to 282,769.22, 390,211.62 and 155,443.98 is: 214,507.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,769.22 : 390,211.62 = 155,443.98 : x
  2. Step 2: Convert to fraction form
    282,769.22/390,211.62 = 155,443.98/x
  3. Step 3: Cross multiply
    282,769.22x = 390,211.62 × 155,443.98
  4. Step 4: Simplify right side
    282,769.22x = 60,656,047,255.05
  5. Step 5: Solve for x
    x = 60,656,047,255.05/282,769.22
  6. Step 6: Final answer
    x = 214,507.25

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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.