Home / 210,844.12-290,984.91-115,365.16

Finding the Fourth Proportional to 210,844.12, 290,984.91 and 115,365.16

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Solution

The fourth proportional to 210,844.12, 290,984.91 and 115,365.16 is: 159,214.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,844.12 : 290,984.91 = 115,365.16 : x
  2. Step 2: Convert to fraction form
    210,844.12/290,984.91 = 115,365.16/x
  3. Step 3: Cross multiply
    210,844.12x = 290,984.91 × 115,365.16
  4. Step 4: Simplify right side
    210,844.12x = 33,569,520,699.74
  5. Step 5: Solve for x
    x = 33,569,520,699.74/210,844.12
  6. Step 6: Final answer
    x = 159,214.88

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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.