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Finding the Fourth Proportional to 233,330.80, 349,121.40 and 212,335.60

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Solution

The fourth proportional to 233,330.80, 349,121.40 and 212,335.60 is: 317,707.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,330.80 : 349,121.40 = 212,335.60 : x
  2. Step 2: Convert to fraction form
    233,330.80/349,121.40 = 212,335.60/x
  3. Step 3: Cross multiply
    233,330.80x = 349,121.40 × 212,335.60
  4. Step 4: Simplify right side
    233,330.80x = 74,130,901,941.84
  5. Step 5: Solve for x
    x = 74,130,901,941.84/233,330.80
  6. Step 6: Final answer
    x = 317,707.31

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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.