Home / 510,021.72-764,869.74-168,389.22

Finding the Fourth Proportional to 510,021.72, 764,869.74 and 168,389.22

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Solution

The fourth proportional to 510,021.72, 764,869.74 and 168,389.22 is: 252,530.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,021.72 : 764,869.74 = 168,389.22 : x
  2. Step 2: Convert to fraction form
    510,021.72/764,869.74 = 168,389.22/x
  3. Step 3: Cross multiply
    510,021.72x = 764,869.74 × 168,389.22
  4. Step 4: Simplify right side
    510,021.72x = 128,795,818,920.20
  5. Step 5: Solve for x
    x = 128,795,818,920.20/510,021.72
  6. Step 6: Final answer
    x = 252,530.07

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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.