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Finding the Fourth Proportional to 303,495.60, 455,243.40 and 223,779.45

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Solution

The fourth proportional to 303,495.60, 455,243.40 and 223,779.45 is: 335,669.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,495.60 : 455,243.40 = 223,779.45 : x
  2. Step 2: Convert to fraction form
    303,495.60/455,243.40 = 223,779.45/x
  3. Step 3: Cross multiply
    303,495.60x = 455,243.40 × 223,779.45
  4. Step 4: Simplify right side
    303,495.60x = 101,874,117,668.13
  5. Step 5: Solve for x
    x = 101,874,117,668.13/303,495.60
  6. Step 6: Final answer
    x = 335,669.18

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1.5x scale

Why These Related Problems?

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