Home / 318,139.20-439,026-174,897.84

Finding the Fourth Proportional to 318,139.20, 439,026 and 174,897.84

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Solution

The fourth proportional to 318,139.20, 439,026 and 174,897.84 is: 241,355.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,139.20 : 439,026 = 174,897.84 : x
  2. Step 2: Convert to fraction form
    318,139.20/439,026 = 174,897.84/x
  3. Step 3: Cross multiply
    318,139.20x = 439,026 × 174,897.84
  4. Step 4: Simplify right side
    318,139.20x = 76,784,699,103.84
  5. Step 5: Solve for x
    x = 76,784,699,103.84/318,139.20
  6. Step 6: Final answer
    x = 241,355.67

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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.