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Finding the Fourth Proportional to 317,899.50, 438,759.63 and 183,763.50

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Solution

The fourth proportional to 317,899.50, 438,759.63 and 183,763.50 is: 253,627.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,899.50 : 438,759.63 = 183,763.50 : x
  2. Step 2: Convert to fraction form
    317,899.50/438,759.63 = 183,763.50/x
  3. Step 3: Cross multiply
    317,899.50x = 438,759.63 × 183,763.50
  4. Step 4: Simplify right side
    317,899.50x = 80,628,005,267.51
  5. Step 5: Solve for x
    x = 80,628,005,267.51/317,899.50
  6. Step 6: Final answer
    x = 253,627.34

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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.