Home / 282,320.96-389,603.60-155,004.76

Finding the Fourth Proportional to 282,320.96, 389,603.60 and 155,004.76

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Solution

The fourth proportional to 282,320.96, 389,603.60 and 155,004.76 is: 213,906.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,320.96 : 389,603.60 = 155,004.76 : x
  2. Step 2: Convert to fraction form
    282,320.96/389,603.60 = 155,004.76/x
  3. Step 3: Cross multiply
    282,320.96x = 389,603.60 × 155,004.76
  4. Step 4: Simplify right side
    282,320.96x = 60,390,412,513.14
  5. Step 5: Solve for x
    x = 60,390,412,513.14/282,320.96
  6. Step 6: Final answer
    x = 213,906.94

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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.