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Finding the Fourth Proportional to 214,510.80, 322,025.40 and 212,955.60

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Solution

The fourth proportional to 214,510.80, 322,025.40 and 212,955.60 is: 319,690.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,510.80 : 322,025.40 = 212,955.60 : x
  2. Step 2: Convert to fraction form
    214,510.80/322,025.40 = 212,955.60/x
  3. Step 3: Cross multiply
    214,510.80x = 322,025.40 × 212,955.60
  4. Step 4: Simplify right side
    214,510.80x = 68,577,112,272.24
  5. Step 5: Solve for x
    x = 68,577,112,272.24/214,510.80
  6. Step 6: Final answer
    x = 319,690.72

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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.