Home / 315,292.20-472,938.30-149,404.20

Finding the Fourth Proportional to 315,292.20, 472,938.30 and 149,404.20

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Solution

The fourth proportional to 315,292.20, 472,938.30 and 149,404.20 is: 224,106.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,292.20 : 472,938.30 = 149,404.20 : x
  2. Step 2: Convert to fraction form
    315,292.20/472,938.30 = 149,404.20/x
  3. Step 3: Cross multiply
    315,292.20x = 472,938.30 × 149,404.20
  4. Step 4: Simplify right side
    315,292.20x = 70,658,968,360.86
  5. Step 5: Solve for x
    x = 70,658,968,360.86/315,292.20
  6. Step 6: Final answer
    x = 224,106.30

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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.