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Finding the Fourth Proportional to 281,504.80, 388,477.68 and 152,443.33

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Solution

The fourth proportional to 281,504.80, 388,477.68 and 152,443.33 is: 210,372.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,504.80 : 388,477.68 = 152,443.33 : x
  2. Step 2: Convert to fraction form
    281,504.80/388,477.68 = 152,443.33/x
  3. Step 3: Cross multiply
    281,504.80x = 388,477.68 × 152,443.33
  4. Step 4: Simplify right side
    281,504.80x = 59,220,832,240.95
  5. Step 5: Solve for x
    x = 59,220,832,240.95/281,504.80
  6. Step 6: Final answer
    x = 210,372.37

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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.