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Finding the Fourth Proportional to 210,993.75, 291,307.17 and 188,293.73

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Solution

The fourth proportional to 210,993.75, 291,307.17 and 188,293.73 is: 259,966.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,993.75 : 291,307.17 = 188,293.73 : x
  2. Step 2: Convert to fraction form
    210,993.75/291,307.17 = 188,293.73/x
  3. Step 3: Cross multiply
    210,993.75x = 291,307.17 × 188,293.73
  4. Step 4: Simplify right side
    210,993.75x = 54,851,312,158.51
  5. Step 5: Solve for x
    x = 54,851,312,158.51/210,993.75
  6. Step 6: Final answer
    x = 259,966.53

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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.