Home / 211,360.76-291,680.16-115,865.36

Finding the Fourth Proportional to 211,360.76, 291,680.16 and 115,865.36

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Solution

The fourth proportional to 211,360.76, 291,680.16 and 115,865.36 is: 159,895.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,360.76 : 291,680.16 = 115,865.36 : x
  2. Step 2: Convert to fraction form
    211,360.76/291,680.16 = 115,865.36/x
  3. Step 3: Cross multiply
    211,360.76x = 291,680.16 × 115,865.36
  4. Step 4: Simplify right side
    211,360.76x = 33,795,626,743.26
  5. Step 5: Solve for x
    x = 33,795,626,743.26/211,360.76
  6. Step 6: Final answer
    x = 159,895.46

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1.5x scale

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.