Home / 210,847.17-290,964.10-115,354.65

Finding the Fourth Proportional to 210,847.17, 290,964.10 and 115,354.65

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Solution

The fourth proportional to 210,847.17, 290,964.10 and 115,354.65 is: 159,186.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,847.17 : 290,964.10 = 115,354.65 : x
  2. Step 2: Convert to fraction form
    210,847.17/290,964.10 = 115,354.65/x
  3. Step 3: Cross multiply
    210,847.17x = 290,964.10 × 115,354.65
  4. Step 4: Simplify right side
    210,847.17x = 33,564,061,629.68
  5. Step 5: Solve for x
    x = 33,564,061,629.68/210,847.17
  6. Step 6: Final answer
    x = 159,186.68

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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.