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Finding the Fourth Proportional to 286,587.74, 395,459.68 and 165,710.73

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Solution

The fourth proportional to 286,587.74, 395,459.68 and 165,710.73 is: 228,662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,587.74 : 395,459.68 = 165,710.73 : x
  2. Step 2: Convert to fraction form
    286,587.74/395,459.68 = 165,710.73/x
  3. Step 3: Cross multiply
    286,587.74x = 395,459.68 × 165,710.73
  4. Step 4: Simplify right side
    286,587.74x = 65,531,912,258.37
  5. Step 5: Solve for x
    x = 65,531,912,258.37/286,587.74
  6. Step 6: Final answer
    x = 228,662.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.