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Finding the Fourth Proportional to 163,383.30, 245,074.95 and 142,647.30

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Solution

The fourth proportional to 163,383.30, 245,074.95 and 142,647.30 is: 213,970.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,383.30 : 245,074.95 = 142,647.30 : x
  2. Step 2: Convert to fraction form
    163,383.30/245,074.95 = 142,647.30/x
  3. Step 3: Cross multiply
    163,383.30x = 245,074.95 × 142,647.30
  4. Step 4: Simplify right side
    163,383.30x = 34,959,279,915.14
  5. Step 5: Solve for x
    x = 34,959,279,915.14/163,383.30
  6. Step 6: Final answer
    x = 213,970.95

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1.5x scale

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.