Home / 289,274.40-433,717.20-131,421.60

Finding the Fourth Proportional to 289,274.40, 433,717.20 and 131,421.60

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Solution

The fourth proportional to 289,274.40, 433,717.20 and 131,421.60 is: 197,044.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,274.40 : 433,717.20 = 131,421.60 : x
  2. Step 2: Convert to fraction form
    289,274.40/433,717.20 = 131,421.60/x
  3. Step 3: Cross multiply
    289,274.40x = 433,717.20 × 131,421.60
  4. Step 4: Simplify right side
    289,274.40x = 56,999,808,371.52
  5. Step 5: Solve for x
    x = 56,999,808,371.52/289,274.40
  6. Step 6: Final answer
    x = 197,044.08

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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.