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Finding the Fourth Proportional to 306,059.40, 459,089.10 and 223,115.40

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Solution

The fourth proportional to 306,059.40, 459,089.10 and 223,115.40 is: 334,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,059.40 : 459,089.10 = 223,115.40 : x
  2. Step 2: Convert to fraction form
    306,059.40/459,089.10 = 223,115.40/x
  3. Step 3: Cross multiply
    306,059.40x = 459,089.10 × 223,115.40
  4. Step 4: Simplify right side
    306,059.40x = 102,429,848,182.14
  5. Step 5: Solve for x
    x = 102,429,848,182.14/306,059.40
  6. Step 6: Final answer
    x = 334,673.10

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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.