Home / 291,726.50-402,032.97-211,017.15

Finding the Fourth Proportional to 291,726.50, 402,032.97 and 211,017.15

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Solution

The fourth proportional to 291,726.50, 402,032.97 and 211,017.15 is: 290,806.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,726.50 : 402,032.97 = 211,017.15 : x
  2. Step 2: Convert to fraction form
    291,726.50/402,032.97 = 211,017.15/x
  3. Step 3: Cross multiply
    291,726.50x = 402,032.97 × 211,017.15
  4. Step 4: Simplify right side
    291,726.50x = 84,835,851,535.44
  5. Step 5: Solve for x
    x = 84,835,851,535.44/291,726.50
  6. Step 6: Final answer
    x = 290,806.12

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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.