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Finding the Fourth Proportional to 238,580, 357,872.16 and 72,368

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Solution

The fourth proportional to 238,580, 357,872.16 and 72,368 is: 108,552.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,580 : 357,872.16 = 72,368 : x
  2. Step 2: Convert to fraction form
    238,580/357,872.16 = 72,368/x
  3. Step 3: Cross multiply
    238,580x = 357,872.16 × 72,368
  4. Step 4: Simplify right side
    238,580x = 25,898,492,474.88
  5. Step 5: Solve for x
    x = 25,898,492,474.88/238,580
  6. Step 6: Final answer
    x = 108,552.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.