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Finding the Fourth Proportional to 290,957.44, 401,518.64 and 163,630.30

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Solution

The fourth proportional to 290,957.44, 401,518.64 and 163,630.30 is: 225,808.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,957.44 : 401,518.64 = 163,630.30 : x
  2. Step 2: Convert to fraction form
    290,957.44/401,518.64 = 163,630.30/x
  3. Step 3: Cross multiply
    290,957.44x = 401,518.64 × 163,630.30
  4. Step 4: Simplify right side
    290,957.44x = 65,700,615,518.79
  5. Step 5: Solve for x
    x = 65,700,615,518.79/290,957.44
  6. Step 6: Final answer
    x = 225,808.34

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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.