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Finding the Fourth Proportional to 354,748.68, 489,553.20 and 264,182.40

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Solution

The fourth proportional to 354,748.68, 489,553.20 and 264,182.40 is: 364,571.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,748.68 : 489,553.20 = 264,182.40 : x
  2. Step 2: Convert to fraction form
    354,748.68/489,553.20 = 264,182.40/x
  3. Step 3: Cross multiply
    354,748.68x = 489,553.20 × 264,182.40
  4. Step 4: Simplify right side
    354,748.68x = 129,331,339,303.68
  5. Step 5: Solve for x
    x = 129,331,339,303.68/354,748.68
  6. Step 6: Final answer
    x = 364,571.73

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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.