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Finding the Fourth Proportional to 286,587.88, 395,459.84 and 165,710.86

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Solution

The fourth proportional to 286,587.88, 395,459.84 and 165,710.86 is: 228,662.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,587.88 : 395,459.84 = 165,710.86 : x
  2. Step 2: Convert to fraction form
    286,587.88/395,459.84 = 165,710.86/x
  3. Step 3: Cross multiply
    286,587.88x = 395,459.84 × 165,710.86
  4. Step 4: Simplify right side
    286,587.88x = 65,531,989,607.49
  5. Step 5: Solve for x
    x = 65,531,989,607.49/286,587.88
  6. Step 6: Final answer
    x = 228,662.81

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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.