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Finding the Fourth Proportional to 286,745.42, 429,527.52 and 168,130.73

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Solution

The fourth proportional to 286,745.42, 429,527.52 and 168,130.73 is: 251,849.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,745.42 : 429,527.52 = 168,130.73 : x
  2. Step 2: Convert to fraction form
    286,745.42/429,527.52 = 168,130.73/x
  3. Step 3: Cross multiply
    286,745.42x = 429,527.52 × 168,130.73
  4. Step 4: Simplify right side
    286,745.42x = 72,216,775,492.69
  5. Step 5: Solve for x
    x = 72,216,775,492.69/286,745.42
  6. Step 6: Final answer
    x = 251,849.80

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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.