Home / 280,983.80-387,640.04-184,210.89

Finding the Fourth Proportional to 280,983.80, 387,640.04 and 184,210.89

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Solution

The fourth proportional to 280,983.80, 387,640.04 and 184,210.89 is: 254,133.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,983.80 : 387,640.04 = 184,210.89 : x
  2. Step 2: Convert to fraction form
    280,983.80/387,640.04 = 184,210.89/x
  3. Step 3: Cross multiply
    280,983.80x = 387,640.04 × 184,210.89
  4. Step 4: Simplify right side
    280,983.80x = 71,407,515,846.98
  5. Step 5: Solve for x
    x = 71,407,515,846.98/280,983.80
  6. Step 6: Final answer
    x = 254,133.93

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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.