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Finding the Fourth Proportional to 248,464.40, 342,911.72 and 141,069.20

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Solution

The fourth proportional to 248,464.40, 342,911.72 and 141,069.20 is: 194,693.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,464.40 : 342,911.72 = 141,069.20 : x
  2. Step 2: Convert to fraction form
    248,464.40/342,911.72 = 141,069.20/x
  3. Step 3: Cross multiply
    248,464.40x = 342,911.72 × 141,069.20
  4. Step 4: Simplify right side
    248,464.40x = 48,374,282,011.02
  5. Step 5: Solve for x
    x = 48,374,282,011.02/248,464.40
  6. Step 6: Final answer
    x = 194,693.01

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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.