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Finding the Fourth Proportional to 210,080.94, 289,911.70 and 114,587.64

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Solution

The fourth proportional to 210,080.94, 289,911.70 and 114,587.64 is: 158,130.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,080.94 : 289,911.70 = 114,587.64 : x
  2. Step 2: Convert to fraction form
    210,080.94/289,911.70 = 114,587.64/x
  3. Step 3: Cross multiply
    210,080.94x = 289,911.70 × 114,587.64
  4. Step 4: Simplify right side
    210,080.94x = 33,220,297,654.62
  5. Step 5: Solve for x
    x = 33,220,297,654.62/210,080.94
  6. Step 6: Final answer
    x = 158,130.94

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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.