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Finding the Fourth Proportional to 303,480.10, 455,738.55 and 163,512.10

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Solution

The fourth proportional to 303,480.10, 455,738.55 and 163,512.10 is: 245,547.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,480.10 : 455,738.55 = 163,512.10 : x
  2. Step 2: Convert to fraction form
    303,480.10/455,738.55 = 163,512.10/x
  3. Step 3: Cross multiply
    303,480.10x = 455,738.55 × 163,512.10
  4. Step 4: Simplify right side
    303,480.10x = 74,518,767,361.46
  5. Step 5: Solve for x
    x = 74,518,767,361.46/303,480.10
  6. Step 6: Final answer
    x = 245,547.46

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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.