Home / 211,030.57-291,222.30-115,537.24

Finding the Fourth Proportional to 211,030.57, 291,222.30 and 115,537.24

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Solution

The fourth proportional to 211,030.57, 291,222.30 and 115,537.24 is: 159,441.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,030.57 : 291,222.30 = 115,537.24 : x
  2. Step 2: Convert to fraction form
    211,030.57/291,222.30 = 115,537.24/x
  3. Step 3: Cross multiply
    211,030.57x = 291,222.30 × 115,537.24
  4. Step 4: Simplify right side
    211,030.57x = 33,647,020,768.45
  5. Step 5: Solve for x
    x = 33,647,020,768.45/211,030.57
  6. Step 6: Final answer
    x = 159,441.45

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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.