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Finding the Fourth Proportional to 362,018.34, 499,515.90 and 207,018.78

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Solution

The fourth proportional to 362,018.34, 499,515.90 and 207,018.78 is: 285,646.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,018.34 : 499,515.90 = 207,018.78 : x
  2. Step 2: Convert to fraction form
    362,018.34/499,515.90 = 207,018.78/x
  3. Step 3: Cross multiply
    362,018.34x = 499,515.90 × 207,018.78
  4. Step 4: Simplify right side
    362,018.34x = 103,409,172,208.60
  5. Step 5: Solve for x
    x = 103,409,172,208.60/362,018.34
  6. Step 6: Final answer
    x = 285,646.23

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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.