Home / 210,868.30-291,000.36-115,379.02

Finding the Fourth Proportional to 210,868.30, 291,000.36 and 115,379.02

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Solution

The fourth proportional to 210,868.30, 291,000.36 and 115,379.02 is: 159,224.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,868.30 : 291,000.36 = 115,379.02 : x
  2. Step 2: Convert to fraction form
    210,868.30/291,000.36 = 115,379.02/x
  3. Step 3: Cross multiply
    210,868.30x = 291,000.36 × 115,379.02
  4. Step 4: Simplify right side
    210,868.30x = 33,575,336,356.45
  5. Step 5: Solve for x
    x = 33,575,336,356.45/210,868.30
  6. Step 6: Final answer
    x = 159,224.20

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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.