Home / 211,077.19-291,275.65-115,565.41

Finding the Fourth Proportional to 211,077.19, 291,275.65 and 115,565.41

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Solution

The fourth proportional to 211,077.19, 291,275.65 and 115,565.41 is: 159,474.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,077.19 : 291,275.65 = 115,565.41 : x
  2. Step 2: Convert to fraction form
    211,077.19/291,275.65 = 115,565.41/x
  3. Step 3: Cross multiply
    211,077.19x = 291,275.65 × 115,565.41
  4. Step 4: Simplify right side
    211,077.19x = 33,661,389,915.27
  5. Step 5: Solve for x
    x = 33,661,389,915.27/211,077.19
  6. Step 6: Final answer
    x = 159,474.31

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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.