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Finding the Fourth Proportional to 459,908.20, 634,672.38 and 258,704.20

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Solution

The fourth proportional to 459,908.20, 634,672.38 and 258,704.20 is: 357,011.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,908.20 : 634,672.38 = 258,704.20 : x
  2. Step 2: Convert to fraction form
    459,908.20/634,672.38 = 258,704.20/x
  3. Step 3: Cross multiply
    459,908.20x = 634,672.38 × 258,704.20
  4. Step 4: Simplify right side
    459,908.20x = 164,192,410,330.00
  5. Step 5: Solve for x
    x = 164,192,410,330.00/459,908.20
  6. Step 6: Final answer
    x = 357,011.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.