Home / 280,324.94-386,837.60-153,000.54

Finding the Fourth Proportional to 280,324.94, 386,837.60 and 153,000.54

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Solution

The fourth proportional to 280,324.94, 386,837.60 and 153,000.54 is: 211,134.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,324.94 : 386,837.60 = 153,000.54 : x
  2. Step 2: Convert to fraction form
    280,324.94/386,837.60 = 153,000.54/x
  3. Step 3: Cross multiply
    280,324.94x = 386,837.60 × 153,000.54
  4. Step 4: Simplify right side
    280,324.94x = 59,186,360,927.30
  5. Step 5: Solve for x
    x = 59,186,360,927.30/280,324.94
  6. Step 6: Final answer
    x = 211,134.84

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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.