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Finding the Fourth Proportional to 291,619, 402,434.22 and 157,483

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Solution

The fourth proportional to 291,619, 402,434.22 and 157,483 is: 217,326.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,619 : 402,434.22 = 157,483 : x
  2. Step 2: Convert to fraction form
    291,619/402,434.22 = 157,483/x
  3. Step 3: Cross multiply
    291,619x = 402,434.22 × 157,483
  4. Step 4: Simplify right side
    291,619x = 63,376,548,268.26
  5. Step 5: Solve for x
    x = 63,376,548,268.26/291,619
  6. Step 6: Final answer
    x = 217,326.54

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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.