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Finding the Fourth Proportional to 281,542.53, 388,525.64 and 152,478.89

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Solution

The fourth proportional to 281,542.53, 388,525.64 and 152,478.89 is: 210,419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,542.53 : 388,525.64 = 152,478.89 : x
  2. Step 2: Convert to fraction form
    281,542.53/388,525.64 = 152,478.89/x
  3. Step 3: Cross multiply
    281,542.53x = 388,525.64 × 152,478.89
  4. Step 4: Simplify right side
    281,542.53x = 59,241,955,618.72
  5. Step 5: Solve for x
    x = 59,241,955,618.72/281,542.53
  6. Step 6: Final answer
    x = 210,419.21

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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.