Home / 261,868.92-392,975.58-143,623.26

Finding the Fourth Proportional to 261,868.92, 392,975.58 and 143,623.26

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Solution

The fourth proportional to 261,868.92, 392,975.58 and 143,623.26 is: 215,529.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,868.92 : 392,975.58 = 143,623.26 : x
  2. Step 2: Convert to fraction form
    261,868.92/392,975.58 = 143,623.26/x
  3. Step 3: Cross multiply
    261,868.92x = 392,975.58 × 143,623.26
  4. Step 4: Simplify right side
    261,868.92x = 56,440,433,899.99
  5. Step 5: Solve for x
    x = 56,440,433,899.99/261,868.92
  6. Step 6: Final answer
    x = 215,529.33

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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.