Home / 211,011.06-291,201.82-115,526.64

Finding the Fourth Proportional to 211,011.06, 291,201.82 and 115,526.64

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Solution

The fourth proportional to 211,011.06, 291,201.82 and 115,526.64 is: 159,430.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,011.06 : 291,201.82 = 115,526.64 : x
  2. Step 2: Convert to fraction form
    211,011.06/291,201.82 = 115,526.64/x
  3. Step 3: Cross multiply
    211,011.06x = 291,201.82 × 115,526.64
  4. Step 4: Simplify right side
    211,011.06x = 33,641,567,826.48
  5. Step 5: Solve for x
    x = 33,641,567,826.48/211,011.06
  6. Step 6: Final answer
    x = 159,430.35

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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.