Home / 280,346.91-386,877.54-153,022.20

Finding the Fourth Proportional to 280,346.91, 386,877.54 and 153,022.20

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Solution

The fourth proportional to 280,346.91, 386,877.54 and 153,022.20 is: 211,169.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,346.91 : 386,877.54 = 153,022.20 : x
  2. Step 2: Convert to fraction form
    280,346.91/386,877.54 = 153,022.20/x
  3. Step 3: Cross multiply
    280,346.91x = 386,877.54 × 153,022.20
  4. Step 4: Simplify right side
    280,346.91x = 59,200,852,301.39
  5. Step 5: Solve for x
    x = 59,200,852,301.39/280,346.91
  6. Step 6: Final answer
    x = 211,169.98

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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.