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Finding the Fourth Proportional to 362,041.98, 500,139.09 and 289,351.80

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Solution

The fourth proportional to 362,041.98, 500,139.09 and 289,351.80 is: 399,722.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,041.98 : 500,139.09 = 289,351.80 : x
  2. Step 2: Convert to fraction form
    362,041.98/500,139.09 = 289,351.80/x
  3. Step 3: Cross multiply
    362,041.98x = 500,139.09 × 289,351.80
  4. Step 4: Simplify right side
    362,041.98x = 144,716,145,941.86
  5. Step 5: Solve for x
    x = 144,716,145,941.86/362,041.98
  6. Step 6: Final answer
    x = 399,722.00

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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.