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Finding the Fourth Proportional to 340,712.30, 510,084.30 and 330,870.80

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Solution

The fourth proportional to 340,712.30, 510,084.30 and 330,870.80 is: 495,350.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,712.30 : 510,084.30 = 330,870.80 : x
  2. Step 2: Convert to fraction form
    340,712.30/510,084.30 = 330,870.80/x
  3. Step 3: Cross multiply
    340,712.30x = 510,084.30 × 330,870.80
  4. Step 4: Simplify right side
    340,712.30x = 168,772,000,408.44
  5. Step 5: Solve for x
    x = 168,772,000,408.44/340,712.30
  6. Step 6: Final answer
    x = 495,350.48

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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.