Home / 211,030.55-291,222.02-115,537.22

Finding the Fourth Proportional to 211,030.55, 291,222.02 and 115,537.22

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Solution

The fourth proportional to 211,030.55, 291,222.02 and 115,537.22 is: 159,441.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,030.55 : 291,222.02 = 115,537.22 : x
  2. Step 2: Convert to fraction form
    211,030.55/291,222.02 = 115,537.22/x
  3. Step 3: Cross multiply
    211,030.55x = 291,222.02 × 115,537.22
  4. Step 4: Simplify right side
    211,030.55x = 33,646,980,559.79
  5. Step 5: Solve for x
    x = 33,646,980,559.79/211,030.55
  6. Step 6: Final answer
    x = 159,441.28

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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.