Home / 353,107.20-529,466.40-142,507.20

Finding the Fourth Proportional to 353,107.20, 529,466.40 and 142,507.20

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Solution

The fourth proportional to 353,107.20, 529,466.40 and 142,507.20 is: 213,682.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,107.20 : 529,466.40 = 142,507.20 : x
  2. Step 2: Convert to fraction form
    353,107.20/529,466.40 = 142,507.20/x
  3. Step 3: Cross multiply
    353,107.20x = 529,466.40 × 142,507.20
  4. Step 4: Simplify right side
    353,107.20x = 75,452,774,158.08
  5. Step 5: Solve for x
    x = 75,452,774,158.08/353,107.20
  6. Step 6: Final answer
    x = 213,682.34

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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.