Home / 280,259.25-386,765.97-152,943.05

Finding the Fourth Proportional to 280,259.25, 386,765.97 and 152,943.05

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Solution

The fourth proportional to 280,259.25, 386,765.97 and 152,943.05 is: 211,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,259.25 : 386,765.97 = 152,943.05 : x
  2. Step 2: Convert to fraction form
    280,259.25/386,765.97 = 152,943.05/x
  3. Step 3: Cross multiply
    280,259.25x = 386,765.97 × 152,943.05
  4. Step 4: Simplify right side
    280,259.25x = 59,153,167,088.01
  5. Step 5: Solve for x
    x = 59,153,167,088.01/280,259.25
  6. Step 6: Final answer
    x = 211,065.89

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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.