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Finding the Fourth Proportional to 355,322.20, 532,205.70 and 308,666.20

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Solution

The fourth proportional to 355,322.20, 532,205.70 and 308,666.20 is: 462,323.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,322.20 : 532,205.70 = 308,666.20 : x
  2. Step 2: Convert to fraction form
    355,322.20/532,205.70 = 308,666.20/x
  3. Step 3: Cross multiply
    355,322.20x = 532,205.70 × 308,666.20
  4. Step 4: Simplify right side
    355,322.20x = 164,273,911,037.34
  5. Step 5: Solve for x
    x = 164,273,911,037.34/355,322.20
  6. Step 6: Final answer
    x = 462,323.80

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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.