Home / 288,315.86-432,475.61-189,106.25

Finding the Fourth Proportional to 288,315.86, 432,475.61 and 189,106.25

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Solution

The fourth proportional to 288,315.86, 432,475.61 and 189,106.25 is: 283,660.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,315.86 : 432,475.61 = 189,106.25 : x
  2. Step 2: Convert to fraction form
    288,315.86/432,475.61 = 189,106.25/x
  3. Step 3: Cross multiply
    288,315.86x = 432,475.61 × 189,106.25
  4. Step 4: Simplify right side
    288,315.86x = 81,783,837,715.65
  5. Step 5: Solve for x
    x = 81,783,837,715.65/288,315.86
  6. Step 6: Final answer
    x = 283,660.56

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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.