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Finding the Fourth Proportional to 268,850.84, 370,970.76 and 154,108.40

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Solution

The fourth proportional to 268,850.84, 370,970.76 and 154,108.40 is: 212,644.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,850.84 : 370,970.76 = 154,108.40 : x
  2. Step 2: Convert to fraction form
    268,850.84/370,970.76 = 154,108.40/x
  3. Step 3: Cross multiply
    268,850.84x = 370,970.76 × 154,108.40
  4. Step 4: Simplify right side
    268,850.84x = 57,169,710,270.38
  5. Step 5: Solve for x
    x = 57,169,710,270.38/268,850.84
  6. Step 6: Final answer
    x = 212,644.72

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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.