Home / 280,160.56-386,622.48-152,838.82

Finding the Fourth Proportional to 280,160.56, 386,622.48 and 152,838.82

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Solution

The fourth proportional to 280,160.56, 386,622.48 and 152,838.82 is: 210,918.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,160.56 : 386,622.48 = 152,838.82 : x
  2. Step 2: Convert to fraction form
    280,160.56/386,622.48 = 152,838.82/x
  3. Step 3: Cross multiply
    280,160.56x = 386,622.48 × 152,838.82
  4. Step 4: Simplify right side
    280,160.56x = 59,090,923,628.67
  5. Step 5: Solve for x
    x = 59,090,923,628.67/280,160.56
  6. Step 6: Final answer
    x = 210,918.07

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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.