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Finding the Fourth Proportional to 281,595.04, 388,602.56 and 154,270.72

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Solution

The fourth proportional to 281,595.04, 388,602.56 and 154,270.72 is: 212,894.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,595.04 : 388,602.56 = 154,270.72 : x
  2. Step 2: Convert to fraction form
    281,595.04/388,602.56 = 154,270.72/x
  3. Step 3: Cross multiply
    281,595.04x = 388,602.56 × 154,270.72
  4. Step 4: Simplify right side
    281,595.04x = 59,949,996,725.04
  5. Step 5: Solve for x
    x = 59,949,996,725.04/281,595.04
  6. Step 6: Final answer
    x = 212,894.36

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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.