Home / 280,193.28-386,666.16-152,868.80

Finding the Fourth Proportional to 280,193.28, 386,666.16 and 152,868.80

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Solution

The fourth proportional to 280,193.28, 386,666.16 and 152,868.80 is: 210,958.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,193.28 : 386,666.16 = 152,868.80 : x
  2. Step 2: Convert to fraction form
    280,193.28/386,666.16 = 152,868.80/x
  3. Step 3: Cross multiply
    280,193.28x = 386,666.16 × 152,868.80
  4. Step 4: Simplify right side
    280,193.28x = 59,109,191,879.81
  5. Step 5: Solve for x
    x = 59,109,191,879.81/280,193.28
  6. Step 6: Final answer
    x = 210,958.63

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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.