Home / 256,624.07-354,154.68-154,681.92

Finding the Fourth Proportional to 256,624.07, 354,154.68 and 154,681.92

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Solution

The fourth proportional to 256,624.07, 354,154.68 and 154,681.92 is: 213,469.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,624.07 : 354,154.68 = 154,681.92 : x
  2. Step 2: Convert to fraction form
    256,624.07/354,154.68 = 154,681.92/x
  3. Step 3: Cross multiply
    256,624.07x = 354,154.68 × 154,681.92
  4. Step 4: Simplify right side
    256,624.07x = 54,781,325,879.39
  5. Step 5: Solve for x
    x = 54,781,325,879.39/256,624.07
  6. Step 6: Final answer
    x = 213,469.17

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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.