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Finding the Fourth Proportional to 169,409.80, 254,114.70 and 162,411.40

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Solution

The fourth proportional to 169,409.80, 254,114.70 and 162,411.40 is: 243,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,409.80 : 254,114.70 = 162,411.40 : x
  2. Step 2: Convert to fraction form
    169,409.80/254,114.70 = 162,411.40/x
  3. Step 3: Cross multiply
    169,409.80x = 254,114.70 × 162,411.40
  4. Step 4: Simplify right side
    169,409.80x = 41,271,124,187.58
  5. Step 5: Solve for x
    x = 41,271,124,187.58/169,409.80
  6. Step 6: Final answer
    x = 243,617.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.