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Finding the Fourth Proportional to 210,141.65, 290,003.61 and 119,505.89

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Solution

The fourth proportional to 210,141.65, 290,003.61 and 119,505.89 is: 164,922.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,141.65 : 290,003.61 = 119,505.89 : x
  2. Step 2: Convert to fraction form
    210,141.65/290,003.61 = 119,505.89/x
  3. Step 3: Cross multiply
    210,141.65x = 290,003.61 × 119,505.89
  4. Step 4: Simplify right side
    210,141.65x = 34,657,138,066.24
  5. Step 5: Solve for x
    x = 34,657,138,066.24/210,141.65
  6. Step 6: Final answer
    x = 164,922.75

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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.