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Finding the Fourth Proportional to 474,662.12, 655,031.30 and 256,870.62

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Solution

The fourth proportional to 474,662.12, 655,031.30 and 256,870.62 is: 354,480.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,662.12 : 655,031.30 = 256,870.62 : x
  2. Step 2: Convert to fraction form
    474,662.12/655,031.30 = 256,870.62/x
  3. Step 3: Cross multiply
    474,662.12x = 655,031.30 × 256,870.62
  4. Step 4: Simplify right side
    474,662.12x = 168,258,294,866.05
  5. Step 5: Solve for x
    x = 168,258,294,866.05/474,662.12
  6. Step 6: Final answer
    x = 354,480.14

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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.