Home / 280,608.08-387,232.85-153,284.18

Finding the Fourth Proportional to 280,608.08, 387,232.85 and 153,284.18

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Solution

The fourth proportional to 280,608.08, 387,232.85 and 153,284.18 is: 211,528.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,608.08 : 387,232.85 = 153,284.18 : x
  2. Step 2: Convert to fraction form
    280,608.08/387,232.85 = 153,284.18/x
  3. Step 3: Cross multiply
    280,608.08x = 387,232.85 × 153,284.18
  4. Step 4: Simplify right side
    280,608.08x = 59,356,669,881.31
  5. Step 5: Solve for x
    x = 59,356,669,881.31/280,608.08
  6. Step 6: Final answer
    x = 211,528.73

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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.