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Finding the Fourth Proportional to 347,878.80, 480,070.80 and 196,975.80

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Solution

The fourth proportional to 347,878.80, 480,070.80 and 196,975.80 is: 271,825.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,878.80 : 480,070.80 = 196,975.80 : x
  2. Step 2: Convert to fraction form
    347,878.80/480,070.80 = 196,975.80/x
  3. Step 3: Cross multiply
    347,878.80x = 480,070.80 × 196,975.80
  4. Step 4: Simplify right side
    347,878.80x = 94,562,329,886.64
  5. Step 5: Solve for x
    x = 94,562,329,886.64/347,878.80
  6. Step 6: Final answer
    x = 271,825.50

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1.5x scale

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.