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Finding the Fourth Proportional to 474,929.04, 655,403.04 and 257,139.96

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Solution

The fourth proportional to 474,929.04, 655,403.04 and 257,139.96 is: 354,853.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,929.04 : 655,403.04 = 257,139.96 : x
  2. Step 2: Convert to fraction form
    474,929.04/655,403.04 = 257,139.96/x
  3. Step 3: Cross multiply
    474,929.04x = 655,403.04 × 257,139.96
  4. Step 4: Simplify right side
    474,929.04x = 168,530,311,489.48
  5. Step 5: Solve for x
    x = 168,530,311,489.48/474,929.04
  6. Step 6: Final answer
    x = 354,853.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.