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Finding the Fourth Proportional to 236,803.20, 355,204.80 and 210,998.40

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Solution

The fourth proportional to 236,803.20, 355,204.80 and 210,998.40 is: 316,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,803.20 : 355,204.80 = 210,998.40 : x
  2. Step 2: Convert to fraction form
    236,803.20/355,204.80 = 210,998.40/x
  3. Step 3: Cross multiply
    236,803.20x = 355,204.80 × 210,998.40
  4. Step 4: Simplify right side
    236,803.20x = 74,947,644,472.32
  5. Step 5: Solve for x
    x = 74,947,644,472.32/236,803.20
  6. Step 6: Final answer
    x = 316,497.60

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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.