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Finding the Fourth Proportional to 291,651.49, 402,520.76 and 164,338.93

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Solution

The fourth proportional to 291,651.49, 402,520.76 and 164,338.93 is: 226,811.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,651.49 : 402,520.76 = 164,338.93 : x
  2. Step 2: Convert to fraction form
    291,651.49/402,520.76 = 164,338.93/x
  3. Step 3: Cross multiply
    291,651.49x = 402,520.76 × 164,338.93
  4. Step 4: Simplify right side
    291,651.49x = 66,149,831,001.19
  5. Step 5: Solve for x
    x = 66,149,831,001.19/291,651.49
  6. Step 6: Final answer
    x = 226,811.22

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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.