Home / 211,303.28-291,599.64-115,810.80

Finding the Fourth Proportional to 211,303.28, 291,599.64 and 115,810.80

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Solution

The fourth proportional to 211,303.28, 291,599.64 and 115,810.80 is: 159,819.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,303.28 : 291,599.64 = 115,810.80 : x
  2. Step 2: Convert to fraction form
    211,303.28/291,599.64 = 115,810.80/x
  3. Step 3: Cross multiply
    211,303.28x = 291,599.64 × 115,810.80
  4. Step 4: Simplify right side
    211,303.28x = 33,770,387,588.11
  5. Step 5: Solve for x
    x = 33,770,387,588.11/211,303.28
  6. Step 6: Final answer
    x = 159,819.51

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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.