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Finding the Fourth Proportional to 306,292.64, 459,447.60 and 84,676.64

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Solution

The fourth proportional to 306,292.64, 459,447.60 and 84,676.64 is: 127,017.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,292.64 : 459,447.60 = 84,676.64 : x
  2. Step 2: Convert to fraction form
    306,292.64/459,447.60 = 84,676.64/x
  3. Step 3: Cross multiply
    306,292.64x = 459,447.60 × 84,676.64
  4. Step 4: Simplify right side
    306,292.64x = 38,904,479,024.06
  5. Step 5: Solve for x
    x = 38,904,479,024.06/306,292.64
  6. Step 6: Final answer
    x = 127,017.35

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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.