Home / 280,341.09-386,856.27-152,992.08

Finding the Fourth Proportional to 280,341.09, 386,856.27 and 152,992.08

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Solution

The fourth proportional to 280,341.09, 386,856.27 and 152,992.08 is: 211,121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,341.09 : 386,856.27 = 152,992.08 : x
  2. Step 2: Convert to fraction form
    280,341.09/386,856.27 = 152,992.08/x
  3. Step 3: Cross multiply
    280,341.09x = 386,856.27 × 152,992.08
  4. Step 4: Simplify right side
    280,341.09x = 59,185,945,408.34
  5. Step 5: Solve for x
    x = 59,185,945,408.34/280,341.09
  6. Step 6: Final answer
    x = 211,121.19

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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.