Home / 287,075.54-396,158.36-179,704.78

Finding the Fourth Proportional to 287,075.54, 396,158.36 and 179,704.78

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Solution

The fourth proportional to 287,075.54, 396,158.36 and 179,704.78 is: 247,988.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,075.54 : 396,158.36 = 179,704.78 : x
  2. Step 2: Convert to fraction form
    287,075.54/396,158.36 = 179,704.78/x
  3. Step 3: Cross multiply
    287,075.54x = 396,158.36 × 179,704.78
  4. Step 4: Simplify right side
    287,075.54x = 71,191,550,928.96
  5. Step 5: Solve for x
    x = 71,191,550,928.96/287,075.54
  6. Step 6: Final answer
    x = 247,988.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.