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Finding the Fourth Proportional to 281,595.39, 388,598.40 and 152,531.43

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Solution

The fourth proportional to 281,595.39, 388,598.40 and 152,531.43 is: 210,491.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,595.39 : 388,598.40 = 152,531.43 : x
  2. Step 2: Convert to fraction form
    281,595.39/388,598.40 = 152,531.43/x
  3. Step 3: Cross multiply
    281,595.39x = 388,598.40 × 152,531.43
  4. Step 4: Simplify right side
    281,595.39x = 59,273,469,647.71
  5. Step 5: Solve for x
    x = 59,273,469,647.71/281,595.39
  6. Step 6: Final answer
    x = 210,491.62

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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.