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Finding the Fourth Proportional to 340,686.40, 511,029.60 and 302,632.60

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Solution

The fourth proportional to 340,686.40, 511,029.60 and 302,632.60 is: 453,948.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,686.40 : 511,029.60 = 302,632.60 : x
  2. Step 2: Convert to fraction form
    340,686.40/511,029.60 = 302,632.60/x
  3. Step 3: Cross multiply
    340,686.40x = 511,029.60 × 302,632.60
  4. Step 4: Simplify right side
    340,686.40x = 154,654,216,524.96
  5. Step 5: Solve for x
    x = 154,654,216,524.96/340,686.40
  6. Step 6: Final answer
    x = 453,948.90

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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.