Home / 509,739.35-764,445.60-168,106.08

Finding the Fourth Proportional to 509,739.35, 764,445.60 and 168,106.08

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Solution

The fourth proportional to 509,739.35, 764,445.60 and 168,106.08 is: 252,105.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,739.35 : 764,445.60 = 168,106.08 : x
  2. Step 2: Convert to fraction form
    509,739.35/764,445.60 = 168,106.08/x
  3. Step 3: Cross multiply
    509,739.35x = 764,445.60 × 168,106.08
  4. Step 4: Simplify right side
    509,739.35x = 128,507,953,189.25
  5. Step 5: Solve for x
    x = 128,507,953,189.25/509,739.35
  6. Step 6: Final answer
    x = 252,105.22

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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.