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Finding the Fourth Proportional to 338,963.58, 467,988.87 and 210,038.86

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Solution

The fourth proportional to 338,963.58, 467,988.87 and 210,038.86 is: 289,989.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,963.58 : 467,988.87 = 210,038.86 : x
  2. Step 2: Convert to fraction form
    338,963.58/467,988.87 = 210,038.86/x
  3. Step 3: Cross multiply
    338,963.58x = 467,988.87 × 210,038.86
  4. Step 4: Simplify right side
    338,963.58x = 98,295,847,697.29
  5. Step 5: Solve for x
    x = 98,295,847,697.29/338,963.58
  6. Step 6: Final answer
    x = 289,989.41

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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.