Home / 402,485.55-603,749.01-102,968.72

Finding the Fourth Proportional to 402,485.55, 603,749.01 and 102,968.72

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Solution

The fourth proportional to 402,485.55, 603,749.01 and 102,968.72 is: 154,458.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,485.55 : 603,749.01 = 102,968.72 : x
  2. Step 2: Convert to fraction form
    402,485.55/603,749.01 = 102,968.72/x
  3. Step 3: Cross multiply
    402,485.55x = 603,749.01 × 102,968.72
  4. Step 4: Simplify right side
    402,485.55x = 62,167,259,742.22
  5. Step 5: Solve for x
    x = 62,167,259,742.22/402,485.55
  6. Step 6: Final answer
    x = 154,458.36

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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.