Home / 211,830.08-292,462.56-131,343.20

Finding the Fourth Proportional to 211,830.08, 292,462.56 and 131,343.20

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Solution

The fourth proportional to 211,830.08, 292,462.56 and 131,343.20 is: 181,338.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,830.08 : 292,462.56 = 131,343.20 : x
  2. Step 2: Convert to fraction form
    211,830.08/292,462.56 = 131,343.20/x
  3. Step 3: Cross multiply
    211,830.08x = 292,462.56 × 131,343.20
  4. Step 4: Simplify right side
    211,830.08x = 38,412,968,510.59
  5. Step 5: Solve for x
    x = 38,412,968,510.59/211,830.08
  6. Step 6: Final answer
    x = 181,338.59

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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.