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Finding the Fourth Proportional to 286,739.42, 429,518.52 and 168,124.73

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Solution

The fourth proportional to 286,739.42, 429,518.52 and 168,124.73 is: 251,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,739.42 : 429,518.52 = 168,124.73 : x
  2. Step 2: Convert to fraction form
    286,739.42/429,518.52 = 168,124.73/x
  3. Step 3: Cross multiply
    286,739.42x = 429,518.52 × 168,124.73
  4. Step 4: Simplify right side
    286,739.42x = 72,212,683,057.41
  5. Step 5: Solve for x
    x = 72,212,683,057.41/286,739.42
  6. Step 6: Final answer
    x = 251,840.80

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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.