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Finding the Fourth Proportional to 277,987.20, 416,883.60 and 144,823.20

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Solution

The fourth proportional to 277,987.20, 416,883.60 and 144,823.20 is: 217,184.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,987.20 : 416,883.60 = 144,823.20 : x
  2. Step 2: Convert to fraction form
    277,987.20/416,883.60 = 144,823.20/x
  3. Step 3: Cross multiply
    277,987.20x = 416,883.60 × 144,823.20
  4. Step 4: Simplify right side
    277,987.20x = 60,374,416,979.52
  5. Step 5: Solve for x
    x = 60,374,416,979.52/277,987.20
  6. Step 6: Final answer
    x = 217,184.16

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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.