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Finding the Fourth Proportional to 281,398.77, 388,327.33 and 152,334.34

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Solution

The fourth proportional to 281,398.77, 388,327.33 and 152,334.34 is: 210,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,398.77 : 388,327.33 = 152,334.34 : x
  2. Step 2: Convert to fraction form
    281,398.77/388,327.33 = 152,334.34/x
  3. Step 3: Cross multiply
    281,398.77x = 388,327.33 × 152,334.34
  4. Step 4: Simplify right side
    281,398.77x = 59,155,587,519.51
  5. Step 5: Solve for x
    x = 59,155,587,519.51/281,398.77
  6. Step 6: Final answer
    x = 210,219.78

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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.