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Finding the Fourth Proportional to 340,064.60, 510,096.90 and 309,738.20

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Solution

The fourth proportional to 340,064.60, 510,096.90 and 309,738.20 is: 464,607.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,064.60 : 510,096.90 = 309,738.20 : x
  2. Step 2: Convert to fraction form
    340,064.60/510,096.90 = 309,738.20/x
  3. Step 3: Cross multiply
    340,064.60x = 510,096.90 × 309,738.20
  4. Step 4: Simplify right side
    340,064.60x = 157,996,495,631.58
  5. Step 5: Solve for x
    x = 157,996,495,631.58/340,064.60
  6. Step 6: Final answer
    x = 464,607.30

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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.