Home / 211,382.10-291,700.98-115,885.53

Finding the Fourth Proportional to 211,382.10, 291,700.98 and 115,885.53

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Solution

The fourth proportional to 211,382.10, 291,700.98 and 115,885.53 is: 159,918.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,382.10 : 291,700.98 = 115,885.53 : x
  2. Step 2: Convert to fraction form
    211,382.10/291,700.98 = 115,885.53/x
  3. Step 3: Cross multiply
    211,382.10x = 291,700.98 × 115,885.53
  4. Step 4: Simplify right side
    211,382.10x = 33,803,922,668.82
  5. Step 5: Solve for x
    x = 33,803,922,668.82/211,382.10
  6. Step 6: Final answer
    x = 159,918.57

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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.