Home / 211,274.61-291,561.25-115,779.25

Finding the Fourth Proportional to 211,274.61, 291,561.25 and 115,779.25

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Solution

The fourth proportional to 211,274.61, 291,561.25 and 115,779.25 is: 159,776.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,274.61 : 291,561.25 = 115,779.25 : x
  2. Step 2: Convert to fraction form
    211,274.61/291,561.25 = 115,779.25/x
  3. Step 3: Cross multiply
    211,274.61x = 291,561.25 × 115,779.25
  4. Step 4: Simplify right side
    211,274.61x = 33,756,742,854.06
  5. Step 5: Solve for x
    x = 33,756,742,854.06/211,274.61
  6. Step 6: Final answer
    x = 159,776.62

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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.