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Finding the Fourth Proportional to 258,492.60, 385,696.35 and 223,500.60

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Solution

The fourth proportional to 258,492.60, 385,696.35 and 223,500.60 is: 333,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,492.60 : 385,696.35 = 223,500.60 : x
  2. Step 2: Convert to fraction form
    258,492.60/385,696.35 = 223,500.60/x
  3. Step 3: Cross multiply
    258,492.60x = 385,696.35 × 223,500.60
  4. Step 4: Simplify right side
    258,492.60x = 86,203,365,642.81
  5. Step 5: Solve for x
    x = 86,203,365,642.81/258,492.60
  6. Step 6: Final answer
    x = 333,484.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.