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Finding the Fourth Proportional to 366,915.60, 550,373.40 and 340,343.55

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Solution

The fourth proportional to 366,915.60, 550,373.40 and 340,343.55 is: 510,515.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,915.60 : 550,373.40 = 340,343.55 : x
  2. Step 2: Convert to fraction form
    366,915.60/550,373.40 = 340,343.55/x
  3. Step 3: Cross multiply
    366,915.60x = 550,373.40 × 340,343.55
  4. Step 4: Simplify right side
    366,915.60x = 187,316,036,781.57
  5. Step 5: Solve for x
    x = 187,316,036,781.57/366,915.60
  6. Step 6: Final answer
    x = 510,515.33

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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.