Home / 289,303.48-433,649.04-131,642.66

Finding the Fourth Proportional to 289,303.48, 433,649.04 and 131,642.66

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Solution

The fourth proportional to 289,303.48, 433,649.04 and 131,642.66 is: 197,324.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,303.48 : 433,649.04 = 131,642.66 : x
  2. Step 2: Convert to fraction form
    289,303.48/433,649.04 = 131,642.66/x
  3. Step 3: Cross multiply
    289,303.48x = 433,649.04 × 131,642.66
  4. Step 4: Simplify right side
    289,303.48x = 57,086,713,132.05
  5. Step 5: Solve for x
    x = 57,086,713,132.05/289,303.48
  6. Step 6: Final answer
    x = 197,324.67

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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.