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Finding the Fourth Proportional to 341,438.70, 512,449.65 and 152,190.30

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Solution

The fourth proportional to 341,438.70, 512,449.65 and 152,190.30 is: 228,415.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,438.70 : 512,449.65 = 152,190.30 : x
  2. Step 2: Convert to fraction form
    341,438.70/512,449.65 = 152,190.30/x
  3. Step 3: Cross multiply
    341,438.70x = 512,449.65 × 152,190.30
  4. Step 4: Simplify right side
    341,438.70x = 77,989,865,968.40
  5. Step 5: Solve for x
    x = 77,989,865,968.40/341,438.70
  6. Step 6: Final answer
    x = 228,415.43

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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.