Home / 280,206.44-386,686.16-152,884.72

Finding the Fourth Proportional to 280,206.44, 386,686.16 and 152,884.72

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Solution

The fourth proportional to 280,206.44, 386,686.16 and 152,884.72 is: 210,981.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,206.44 : 386,686.16 = 152,884.72 : x
  2. Step 2: Convert to fraction form
    280,206.44/386,686.16 = 152,884.72/x
  3. Step 3: Cross multiply
    280,206.44x = 386,686.16 × 152,884.72
  4. Step 4: Simplify right side
    280,206.44x = 59,118,405,299.48
  5. Step 5: Solve for x
    x = 59,118,405,299.48/280,206.44
  6. Step 6: Final answer
    x = 210,981.61

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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.