Home / 282,985.67-390,548.87-162,142.98

Finding the Fourth Proportional to 282,985.67, 390,548.87 and 162,142.98

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Solution

The fourth proportional to 282,985.67, 390,548.87 and 162,142.98 is: 223,773.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,985.67 : 390,548.87 = 162,142.98 : x
  2. Step 2: Convert to fraction form
    282,985.67/390,548.87 = 162,142.98/x
  3. Step 3: Cross multiply
    282,985.67x = 390,548.87 × 162,142.98
  4. Step 4: Simplify right side
    282,985.67x = 63,324,756,806.72
  5. Step 5: Solve for x
    x = 63,324,756,806.72/282,985.67
  6. Step 6: Final answer
    x = 223,773.73

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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.