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Finding the Fourth Proportional to 330,130.60, 455,688.60 and 194,158.60

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Solution

The fourth proportional to 330,130.60, 455,688.60 and 194,158.60 is: 268,002.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,130.60 : 455,688.60 = 194,158.60 : x
  2. Step 2: Convert to fraction form
    330,130.60/455,688.60 = 194,158.60/x
  3. Step 3: Cross multiply
    330,130.60x = 455,688.60 × 194,158.60
  4. Step 4: Simplify right side
    330,130.60x = 88,475,860,611.96
  5. Step 5: Solve for x
    x = 88,475,860,611.96/330,130.60
  6. Step 6: Final answer
    x = 268,002.60

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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.