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Finding the Fourth Proportional to 302,799.70, 455,183.70 and 259,497.10

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Solution

The fourth proportional to 302,799.70, 455,183.70 and 259,497.10 is: 390,089.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,799.70 : 455,183.70 = 259,497.10 : x
  2. Step 2: Convert to fraction form
    302,799.70/455,183.70 = 259,497.10/x
  3. Step 3: Cross multiply
    302,799.70x = 455,183.70 × 259,497.10
  4. Step 4: Simplify right side
    302,799.70x = 118,118,850,117.27
  5. Step 5: Solve for x
    x = 118,118,850,117.27/302,799.70
  6. Step 6: Final answer
    x = 390,089.06

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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.