Home / 256,721.74-384,918.58-123,336.62

Finding the Fourth Proportional to 256,721.74, 384,918.58 and 123,336.62

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Solution

The fourth proportional to 256,721.74, 384,918.58 and 123,336.62 is: 184,926.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,721.74 : 384,918.58 = 123,336.62 : x
  2. Step 2: Convert to fraction form
    256,721.74/384,918.58 = 123,336.62/x
  3. Step 3: Cross multiply
    256,721.74x = 384,918.58 × 123,336.62
  4. Step 4: Simplify right side
    256,721.74x = 47,474,556,632.40
  5. Step 5: Solve for x
    x = 47,474,556,632.40/256,721.74
  6. Step 6: Final answer
    x = 184,926.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.