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Finding the Fourth Proportional to 281,507.77, 388,480.94 and 152,447.26

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Solution

The fourth proportional to 281,507.77, 388,480.94 and 152,447.26 is: 210,377.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,507.77 : 388,480.94 = 152,447.26 : x
  2. Step 2: Convert to fraction form
    281,507.77/388,480.94 = 152,447.26/x
  3. Step 3: Cross multiply
    281,507.77x = 388,480.94 × 152,447.26
  4. Step 4: Simplify right side
    281,507.77x = 59,222,854,865.22
  5. Step 5: Solve for x
    x = 59,222,854,865.22/281,507.77
  6. Step 6: Final answer
    x = 210,377.34

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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.