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Finding the Fourth Proportional to 315,002.20, 472,503.30 and 297,943.60

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Solution

The fourth proportional to 315,002.20, 472,503.30 and 297,943.60 is: 446,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,002.20 : 472,503.30 = 297,943.60 : x
  2. Step 2: Convert to fraction form
    315,002.20/472,503.30 = 297,943.60/x
  3. Step 3: Cross multiply
    315,002.20x = 472,503.30 × 297,943.60
  4. Step 4: Simplify right side
    315,002.20x = 140,779,334,213.88
  5. Step 5: Solve for x
    x = 140,779,334,213.88/315,002.20
  6. Step 6: Final answer
    x = 446,915.40

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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.