Home / 210,379.10-290,350.59-119,717.42

Finding the Fourth Proportional to 210,379.10, 290,350.59 and 119,717.42

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Solution

The fourth proportional to 210,379.10, 290,350.59 and 119,717.42 is: 165,225.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,379.10 : 290,350.59 = 119,717.42 : x
  2. Step 2: Convert to fraction form
    210,379.10/290,350.59 = 119,717.42/x
  3. Step 3: Cross multiply
    210,379.10x = 290,350.59 × 119,717.42
  4. Step 4: Simplify right side
    210,379.10x = 34,760,023,530.28
  5. Step 5: Solve for x
    x = 34,760,023,530.28/210,379.10
  6. Step 6: Final answer
    x = 165,225.65

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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.