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Finding the Fourth Proportional to 280,168.47, 386,624.84 and 152,844.03

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Solution

The fourth proportional to 280,168.47, 386,624.84 and 152,844.03 is: 210,920.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,168.47 : 386,624.84 = 152,844.03 : x
  2. Step 2: Convert to fraction form
    280,168.47/386,624.84 = 152,844.03/x
  3. Step 3: Cross multiply
    280,168.47x = 386,624.84 × 152,844.03
  4. Step 4: Simplify right side
    280,168.47x = 59,093,297,879.49
  5. Step 5: Solve for x
    x = 59,093,297,879.49/280,168.47
  6. Step 6: Final answer
    x = 210,920.59

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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.