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Finding the Fourth Proportional to 281,398.26, 388,326.65 and 152,333.84

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Solution

The fourth proportional to 281,398.26, 388,326.65 and 152,333.84 is: 210,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,398.26 : 388,326.65 = 152,333.84 : x
  2. Step 2: Convert to fraction form
    281,398.26/388,326.65 = 152,333.84/x
  3. Step 3: Cross multiply
    281,398.26x = 388,326.65 × 152,333.84
  4. Step 4: Simplify right side
    281,398.26x = 59,155,289,768.84
  5. Step 5: Solve for x
    x = 59,155,289,768.84/281,398.26
  6. Step 6: Final answer
    x = 210,219.10

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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.