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Finding the Fourth Proportional to 306,073.40, 459,110.10 and 223,129.40

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Solution

The fourth proportional to 306,073.40, 459,110.10 and 223,129.40 is: 334,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,073.40 : 459,110.10 = 223,129.40 : x
  2. Step 2: Convert to fraction form
    306,073.40/459,110.10 = 223,129.40/x
  3. Step 3: Cross multiply
    306,073.40x = 459,110.10 × 223,129.40
  4. Step 4: Simplify right side
    306,073.40x = 102,440,961,146.94
  5. Step 5: Solve for x
    x = 102,440,961,146.94/306,073.40
  6. Step 6: Final answer
    x = 334,694.10

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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.