Home / 500,122.35-750,300.57-145,143.09

Finding the Fourth Proportional to 500,122.35, 750,300.57 and 145,143.09

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Solution

The fourth proportional to 500,122.35, 750,300.57 and 145,143.09 is: 217,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,122.35 : 750,300.57 = 145,143.09 : x
  2. Step 2: Convert to fraction form
    500,122.35/750,300.57 = 145,143.09/x
  3. Step 3: Cross multiply
    500,122.35x = 750,300.57 × 145,143.09
  4. Step 4: Simplify right side
    500,122.35x = 108,900,943,158.56
  5. Step 5: Solve for x
    x = 108,900,943,158.56/500,122.35
  6. Step 6: Final answer
    x = 217,748.60

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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.