Home / 282,320.84-389,603.42-155,004.64

Finding the Fourth Proportional to 282,320.84, 389,603.42 and 155,004.64

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Solution

The fourth proportional to 282,320.84, 389,603.42 and 155,004.64 is: 213,906.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,320.84 : 389,603.42 = 155,004.64 : x
  2. Step 2: Convert to fraction form
    282,320.84/389,603.42 = 155,004.64/x
  3. Step 3: Cross multiply
    282,320.84x = 389,603.42 × 155,004.64
  4. Step 4: Simplify right side
    282,320.84x = 60,390,336,692.10
  5. Step 5: Solve for x
    x = 60,390,336,692.10/282,320.84
  6. Step 6: Final answer
    x = 213,906.76

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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.