Home / 282,936.52-390,464.76-155,616.76

Finding the Fourth Proportional to 282,936.52, 390,464.76 and 155,616.76

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Solution

The fourth proportional to 282,936.52, 390,464.76 and 155,616.76 is: 214,757.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,936.52 : 390,464.76 = 155,616.76 : x
  2. Step 2: Convert to fraction form
    282,936.52/390,464.76 = 155,616.76/x
  3. Step 3: Cross multiply
    282,936.52x = 390,464.76 × 155,616.76
  4. Step 4: Simplify right side
    282,936.52x = 60,762,860,845.38
  5. Step 5: Solve for x
    x = 60,762,860,845.38/282,936.52
  6. Step 6: Final answer
    x = 214,757.93

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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.