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Finding the Fourth Proportional to 277,075.20, 415,612.80 and 99,600.15

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Solution

The fourth proportional to 277,075.20, 415,612.80 and 99,600.15 is: 149,400.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,075.20 : 415,612.80 = 99,600.15 : x
  2. Step 2: Convert to fraction form
    277,075.20/415,612.80 = 99,600.15/x
  3. Step 3: Cross multiply
    277,075.20x = 415,612.80 × 99,600.15
  4. Step 4: Simplify right side
    277,075.20x = 41,395,097,221.92
  5. Step 5: Solve for x
    x = 41,395,097,221.92/277,075.20
  6. Step 6: Final answer
    x = 149,400.23

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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.