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Finding the Fourth Proportional to 277,226.40, 382,530 and 156,362.40

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Solution

The fourth proportional to 277,226.40, 382,530 and 156,362.40 is: 215,756.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,226.40 : 382,530 = 156,362.40 : x
  2. Step 2: Convert to fraction form
    277,226.40/382,530 = 156,362.40/x
  3. Step 3: Cross multiply
    277,226.40x = 382,530 × 156,362.40
  4. Step 4: Simplify right side
    277,226.40x = 59,813,308,872
  5. Step 5: Solve for x
    x = 59,813,308,872/277,226.40
  6. Step 6: Final answer
    x = 215,756.18

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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.