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Finding the Fourth Proportional to 309,177.10, 463,765.65 and 239,106.70

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Solution

The fourth proportional to 309,177.10, 463,765.65 and 239,106.70 is: 358,660.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,177.10 : 463,765.65 = 239,106.70 : x
  2. Step 2: Convert to fraction form
    309,177.10/463,765.65 = 239,106.70/x
  3. Step 3: Cross multiply
    309,177.10x = 463,765.65 × 239,106.70
  4. Step 4: Simplify right side
    309,177.10x = 110,889,474,144.86
  5. Step 5: Solve for x
    x = 110,889,474,144.86/309,177.10
  6. Step 6: Final answer
    x = 358,660.05

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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.