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Finding the Fourth Proportional to 291,489.01, 402,283.52 and 170,622.97

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Solution

The fourth proportional to 291,489.01, 402,283.52 and 170,622.97 is: 235,476.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,489.01 : 402,283.52 = 170,622.97 : x
  2. Step 2: Convert to fraction form
    291,489.01/402,283.52 = 170,622.97/x
  3. Step 3: Cross multiply
    291,489.01x = 402,283.52 × 170,622.97
  4. Step 4: Simplify right side
    291,489.01x = 68,638,808,964.45
  5. Step 5: Solve for x
    x = 68,638,808,964.45/291,489.01
  6. Step 6: Final answer
    x = 235,476.49

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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.