Home / 380,681.12-570,977.52-100,220.24

Finding the Fourth Proportional to 380,681.12, 570,977.52 and 100,220.24

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Solution

The fourth proportional to 380,681.12, 570,977.52 and 100,220.24 is: 150,318.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,681.12 : 570,977.52 = 100,220.24 : x
  2. Step 2: Convert to fraction form
    380,681.12/570,977.52 = 100,220.24/x
  3. Step 3: Cross multiply
    380,681.12x = 570,977.52 × 100,220.24
  4. Step 4: Simplify right side
    380,681.12x = 57,223,504,089.00
  5. Step 5: Solve for x
    x = 57,223,504,089.00/380,681.12
  6. Step 6: Final answer
    x = 150,318.73

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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.