Home / 289,121.32-433,722.30-131,389.48

Finding the Fourth Proportional to 289,121.32, 433,722.30 and 131,389.48

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Solution

The fourth proportional to 289,121.32, 433,722.30 and 131,389.48 is: 197,102.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,121.32 : 433,722.30 = 131,389.48 : x
  2. Step 2: Convert to fraction form
    289,121.32/433,722.30 = 131,389.48/x
  3. Step 3: Cross multiply
    289,121.32x = 433,722.30 × 131,389.48
  4. Step 4: Simplify right side
    289,121.32x = 56,986,547,461.40
  5. Step 5: Solve for x
    x = 56,986,547,461.40/289,121.32
  6. Step 6: Final answer
    x = 197,102.54

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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.