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Finding the Fourth Proportional to 258,360.60, 385,499.67 and 223,368.60

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Solution

The fourth proportional to 258,360.60, 385,499.67 and 223,368.60 is: 333,288.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,360.60 : 385,499.67 = 223,368.60 : x
  2. Step 2: Convert to fraction form
    258,360.60/385,499.67 = 223,368.60/x
  3. Step 3: Cross multiply
    258,360.60x = 385,499.67 × 223,368.60
  4. Step 4: Simplify right side
    258,360.60x = 86,108,521,588.36
  5. Step 5: Solve for x
    x = 86,108,521,588.36/258,360.60
  6. Step 6: Final answer
    x = 333,288.13

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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.