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Finding the Fourth Proportional to 291,068.36, 401,527.36 and 170,130.63

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Solution

The fourth proportional to 291,068.36, 401,527.36 and 170,130.63 is: 234,694.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,068.36 : 401,527.36 = 170,130.63 : x
  2. Step 2: Convert to fraction form
    291,068.36/401,527.36 = 170,130.63/x
  3. Step 3: Cross multiply
    291,068.36x = 401,527.36 × 170,130.63
  4. Step 4: Simplify right side
    291,068.36x = 68,312,102,719.04
  5. Step 5: Solve for x
    x = 68,312,102,719.04/291,068.36
  6. Step 6: Final answer
    x = 234,694.36

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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.