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Finding the Fourth Proportional to 171,808.80, 257,275.80 and 163,935.60

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Solution

The fourth proportional to 171,808.80, 257,275.80 and 163,935.60 is: 245,486.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,808.80 : 257,275.80 = 163,935.60 : x
  2. Step 2: Convert to fraction form
    171,808.80/257,275.80 = 163,935.60/x
  3. Step 3: Cross multiply
    171,808.80x = 257,275.80 × 163,935.60
  4. Step 4: Simplify right side
    171,808.80x = 42,176,662,638.48
  5. Step 5: Solve for x
    x = 42,176,662,638.48/171,808.80
  6. Step 6: Final answer
    x = 245,486.04

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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.