Home / 261,361.08-392,216.40-111,636.36

Finding the Fourth Proportional to 261,361.08, 392,216.40 and 111,636.36

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Solution

The fourth proportional to 261,361.08, 392,216.40 and 111,636.36 is: 167,529.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,361.08 : 392,216.40 = 111,636.36 : x
  2. Step 2: Convert to fraction form
    261,361.08/392,216.40 = 111,636.36/x
  3. Step 3: Cross multiply
    261,361.08x = 392,216.40 × 111,636.36
  4. Step 4: Simplify right side
    261,361.08x = 43,785,611,228.30
  5. Step 5: Solve for x
    x = 43,785,611,228.30/261,361.08
  6. Step 6: Final answer
    x = 167,529.19

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1.5x scale

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.