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Finding the Fourth Proportional to 210,080.16, 289,917.36 and 114,590.88

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Solution

The fourth proportional to 210,080.16, 289,917.36 and 114,590.88 is: 158,139.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,080.16 : 289,917.36 = 114,590.88 : x
  2. Step 2: Convert to fraction form
    210,080.16/289,917.36 = 114,590.88/x
  3. Step 3: Cross multiply
    210,080.16x = 289,917.36 × 114,590.88
  4. Step 4: Simplify right side
    210,080.16x = 33,221,885,409.68
  5. Step 5: Solve for x
    x = 33,221,885,409.68/210,080.16
  6. Step 6: Final answer
    x = 158,139.09

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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.