Home / 291,458.14-402,213.16-168,974.40

Finding the Fourth Proportional to 291,458.14, 402,213.16 and 168,974.40

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Solution

The fourth proportional to 291,458.14, 402,213.16 and 168,974.40 is: 233,185.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,458.14 : 402,213.16 = 168,974.40 : x
  2. Step 2: Convert to fraction form
    291,458.14/402,213.16 = 168,974.40/x
  3. Step 3: Cross multiply
    291,458.14x = 402,213.16 × 168,974.40
  4. Step 4: Simplify right side
    291,458.14x = 67,963,727,383.10
  5. Step 5: Solve for x
    x = 67,963,727,383.10/291,458.14
  6. Step 6: Final answer
    x = 233,185.21

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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.