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Finding the Fourth Proportional to 268,554.75, 370,605.96 and 155,384.79

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Solution

The fourth proportional to 268,554.75, 370,605.96 and 155,384.79 is: 214,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,554.75 : 370,605.96 = 155,384.79 : x
  2. Step 2: Convert to fraction form
    268,554.75/370,605.96 = 155,384.79/x
  3. Step 3: Cross multiply
    268,554.75x = 370,605.96 × 155,384.79
  4. Step 4: Simplify right side
    268,554.75x = 57,586,529,267.35
  5. Step 5: Solve for x
    x = 57,586,529,267.35/268,554.75
  6. Step 6: Final answer
    x = 214,431.24

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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.