Home / 380,107.74-570,292.02-143,518.08

Finding the Fourth Proportional to 380,107.74, 570,292.02 and 143,518.08

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Solution

The fourth proportional to 380,107.74, 570,292.02 and 143,518.08 is: 215,326.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,107.74 : 570,292.02 = 143,518.08 : x
  2. Step 2: Convert to fraction form
    380,107.74/570,292.02 = 143,518.08/x
  3. Step 3: Cross multiply
    380,107.74x = 570,292.02 × 143,518.08
  4. Step 4: Simplify right side
    380,107.74x = 81,847,215,749.72
  5. Step 5: Solve for x
    x = 81,847,215,749.72/380,107.74
  6. Step 6: Final answer
    x = 215,326.36

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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.