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Finding the Fourth Proportional to 380,383.60, 570,574.86 and 114,143.68

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Solution

The fourth proportional to 380,383.60, 570,574.86 and 114,143.68 is: 171,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,383.60 : 570,574.86 = 114,143.68 : x
  2. Step 2: Convert to fraction form
    380,383.60/570,574.86 = 114,143.68/x
  3. Step 3: Cross multiply
    380,383.60x = 570,574.86 × 114,143.68
  4. Step 4: Simplify right side
    380,383.60x = 65,127,514,235.88
  5. Step 5: Solve for x
    x = 65,127,514,235.88/380,383.60
  6. Step 6: Final answer
    x = 171,215.36

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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.