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Finding the Fourth Proportional to 361,605.20, 542,407.80 and 302,993.60

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Solution

The fourth proportional to 361,605.20, 542,407.80 and 302,993.60 is: 454,490.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,605.20 : 542,407.80 = 302,993.60 : x
  2. Step 2: Convert to fraction form
    361,605.20/542,407.80 = 302,993.60/x
  3. Step 3: Cross multiply
    361,605.20x = 542,407.80 × 302,993.60
  4. Step 4: Simplify right side
    361,605.20x = 164,346,091,990.08
  5. Step 5: Solve for x
    x = 164,346,091,990.08/361,605.20
  6. Step 6: Final answer
    x = 454,490.40

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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.