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Finding the Fourth Proportional to 291,282.85, 401,970.40 and 170,447.36

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Solution

The fourth proportional to 291,282.85, 401,970.40 and 170,447.36 is: 235,217.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,282.85 : 401,970.40 = 170,447.36 : x
  2. Step 2: Convert to fraction form
    291,282.85/401,970.40 = 170,447.36/x
  3. Step 3: Cross multiply
    291,282.85x = 401,970.40 × 170,447.36
  4. Step 4: Simplify right side
    291,282.85x = 68,514,791,042.17
  5. Step 5: Solve for x
    x = 68,514,791,042.17/291,282.85
  6. Step 6: Final answer
    x = 235,217.39

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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.