Home / 271,776.12-407,824.56-103,438.16

Finding the Fourth Proportional to 271,776.12, 407,824.56 and 103,438.16

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Solution

The fourth proportional to 271,776.12, 407,824.56 and 103,438.16 is: 155,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,776.12 : 407,824.56 = 103,438.16 : x
  2. Step 2: Convert to fraction form
    271,776.12/407,824.56 = 103,438.16/x
  3. Step 3: Cross multiply
    271,776.12x = 407,824.56 × 103,438.16
  4. Step 4: Simplify right side
    271,776.12x = 42,184,622,089.21
  5. Step 5: Solve for x
    x = 42,184,622,089.21/271,776.12
  6. Step 6: Final answer
    x = 155,218.28

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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.