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Finding the Fourth Proportional to 455,602.90, 683,395.13 and 118,636.09

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Solution

The fourth proportional to 455,602.90, 683,395.13 and 118,636.09 is: 177,951.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,602.90 : 683,395.13 = 118,636.09 : x
  2. Step 2: Convert to fraction form
    455,602.90/683,395.13 = 118,636.09/x
  3. Step 3: Cross multiply
    455,602.90x = 683,395.13 × 118,636.09
  4. Step 4: Simplify right side
    455,602.90x = 81,075,327,913.11
  5. Step 5: Solve for x
    x = 81,075,327,913.11/455,602.90
  6. Step 6: Final answer
    x = 177,951.74

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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.