Home / 253,120.50-349,205.82-145,632.68

Finding the Fourth Proportional to 253,120.50, 349,205.82 and 145,632.68

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Solution

The fourth proportional to 253,120.50, 349,205.82 and 145,632.68 is: 200,915.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,120.50 : 349,205.82 = 145,632.68 : x
  2. Step 2: Convert to fraction form
    253,120.50/349,205.82 = 145,632.68/x
  3. Step 3: Cross multiply
    253,120.50x = 349,205.82 × 145,632.68
  4. Step 4: Simplify right side
    253,120.50x = 50,855,779,438.20
  5. Step 5: Solve for x
    x = 50,855,779,438.20/253,120.50
  6. Step 6: Final answer
    x = 200,915.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.