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Finding the Fourth Proportional to 280,135.04, 386,636.48 and 166,964.96

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Solution

The fourth proportional to 280,135.04, 386,636.48 and 166,964.96 is: 230,441.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,135.04 : 386,636.48 = 166,964.96 : x
  2. Step 2: Convert to fraction form
    280,135.04/386,636.48 = 166,964.96/x
  3. Step 3: Cross multiply
    280,135.04x = 386,636.48 × 166,964.96
  4. Step 4: Simplify right side
    280,135.04x = 64,554,744,417.74
  5. Step 5: Solve for x
    x = 64,554,744,417.74/280,135.04
  6. Step 6: Final answer
    x = 230,441.52

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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.