Home / 210,898.16-291,039.45-115,404.84

Finding the Fourth Proportional to 210,898.16, 291,039.45 and 115,404.84

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Solution

The fourth proportional to 210,898.16, 291,039.45 and 115,404.84 is: 159,258.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,898.16 : 291,039.45 = 115,404.84 : x
  2. Step 2: Convert to fraction form
    210,898.16/291,039.45 = 115,404.84/x
  3. Step 3: Cross multiply
    210,898.16x = 291,039.45 × 115,404.84
  4. Step 4: Simplify right side
    210,898.16x = 33,587,361,160.94
  5. Step 5: Solve for x
    x = 33,587,361,160.94/210,898.16
  6. Step 6: Final answer
    x = 159,258.68

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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.