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Finding the Fourth Proportional to 553,975.77, 830,307.56 and 254,203.68

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Solution

The fourth proportional to 553,975.77, 830,307.56 and 254,203.68 is: 381,004.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,975.77 : 830,307.56 = 254,203.68 : x
  2. Step 2: Convert to fraction form
    553,975.77/830,307.56 = 254,203.68/x
  3. Step 3: Cross multiply
    553,975.77x = 830,307.56 × 254,203.68
  4. Step 4: Simplify right side
    553,975.77x = 211,067,236,012.80
  5. Step 5: Solve for x
    x = 211,067,236,012.80/553,975.77
  6. Step 6: Final answer
    x = 381,004.45

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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.