Home / 398,128.24-597,099.48-229,289.68

Finding the Fourth Proportional to 398,128.24, 597,099.48 and 229,289.68

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Solution

The fourth proportional to 398,128.24, 597,099.48 and 229,289.68 is: 343,881.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,128.24 : 597,099.48 = 229,289.68 : x
  2. Step 2: Convert to fraction form
    398,128.24/597,099.48 = 229,289.68/x
  3. Step 3: Cross multiply
    398,128.24x = 597,099.48 × 229,289.68
  4. Step 4: Simplify right side
    398,128.24x = 136,908,748,697.37
  5. Step 5: Solve for x
    x = 136,908,748,697.37/398,128.24
  6. Step 6: Final answer
    x = 343,881.03

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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.