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Finding the Fourth Proportional to 340,671.60, 511,007.40 and 214,700.40

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Solution

The fourth proportional to 340,671.60, 511,007.40 and 214,700.40 is: 322,050.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,671.60 : 511,007.40 = 214,700.40 : x
  2. Step 2: Convert to fraction form
    340,671.60/511,007.40 = 214,700.40/x
  3. Step 3: Cross multiply
    340,671.60x = 511,007.40 × 214,700.40
  4. Step 4: Simplify right side
    340,671.60x = 109,713,493,182.96
  5. Step 5: Solve for x
    x = 109,713,493,182.96/340,671.60
  6. Step 6: Final answer
    x = 322,050.60

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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.