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Finding the Fourth Proportional to 286,903.95, 432,504.69 and 267,636.48

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Solution

The fourth proportional to 286,903.95, 432,504.69 and 267,636.48 is: 403,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,903.95 : 432,504.69 = 267,636.48 : x
  2. Step 2: Convert to fraction form
    286,903.95/432,504.69 = 267,636.48/x
  3. Step 3: Cross multiply
    286,903.95x = 432,504.69 × 267,636.48
  4. Step 4: Simplify right side
    286,903.95x = 115,754,032,815.09
  5. Step 5: Solve for x
    x = 115,754,032,815.09/286,903.95
  6. Step 6: Final answer
    x = 403,459.18

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.