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Finding the Fourth Proportional to 311,383.80, 467,075.70 and 249,175.80

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Solution

The fourth proportional to 311,383.80, 467,075.70 and 249,175.80 is: 373,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,383.80 : 467,075.70 = 249,175.80 : x
  2. Step 2: Convert to fraction form
    311,383.80/467,075.70 = 249,175.80/x
  3. Step 3: Cross multiply
    311,383.80x = 467,075.70 × 249,175.80
  4. Step 4: Simplify right side
    311,383.80x = 116,383,961,208.06
  5. Step 5: Solve for x
    x = 116,383,961,208.06/311,383.80
  6. Step 6: Final answer
    x = 373,763.70

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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.