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Finding the Fourth Proportional to 355,907.21, 491,152.01 and 194,762.30

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Solution

The fourth proportional to 355,907.21, 491,152.01 and 194,762.30 is: 268,772.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,907.21 : 491,152.01 = 194,762.30 : x
  2. Step 2: Convert to fraction form
    355,907.21/491,152.01 = 194,762.30/x
  3. Step 3: Cross multiply
    355,907.21x = 491,152.01 × 194,762.30
  4. Step 4: Simplify right side
    355,907.21x = 95,657,895,117.22
  5. Step 5: Solve for x
    x = 95,657,895,117.22/355,907.21
  6. Step 6: Final answer
    x = 268,772.01

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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.