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Finding the Fourth Proportional to 291,955.29, 402,903.54 and 171,130.83

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Solution

The fourth proportional to 291,955.29, 402,903.54 and 171,130.83 is: 236,163.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,955.29 : 402,903.54 = 171,130.83 : x
  2. Step 2: Convert to fraction form
    291,955.29/402,903.54 = 171,130.83/x
  3. Step 3: Cross multiply
    291,955.29x = 402,903.54 × 171,130.83
  4. Step 4: Simplify right side
    291,955.29x = 68,949,217,210.14
  5. Step 5: Solve for x
    x = 68,949,217,210.14/291,955.29
  6. Step 6: Final answer
    x = 236,163.62

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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.