Home / 291,209.10-401,802.04-163,838.22

Finding the Fourth Proportional to 291,209.10, 401,802.04 and 163,838.22

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Solution

The fourth proportional to 291,209.10, 401,802.04 and 163,838.22 is: 226,059.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,209.10 : 401,802.04 = 163,838.22 : x
  2. Step 2: Convert to fraction form
    291,209.10/401,802.04 = 163,838.22/x
  3. Step 3: Cross multiply
    291,209.10x = 401,802.04 × 163,838.22
  4. Step 4: Simplify right side
    291,209.10x = 65,830,531,025.97
  5. Step 5: Solve for x
    x = 65,830,531,025.97/291,209.10
  6. Step 6: Final answer
    x = 226,059.32

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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.