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Finding the Fourth Proportional to 287,497.04, 431,266.41 and 116,636.72

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Solution

The fourth proportional to 287,497.04, 431,266.41 and 116,636.72 is: 174,963.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,497.04 : 431,266.41 = 116,636.72 : x
  2. Step 2: Convert to fraction form
    287,497.04/431,266.41 = 116,636.72/x
  3. Step 3: Cross multiply
    287,497.04x = 431,266.41 × 116,636.72
  4. Step 4: Simplify right side
    287,497.04x = 50,301,497,352.24
  5. Step 5: Solve for x
    x = 50,301,497,352.24/287,497.04
  6. Step 6: Final answer
    x = 174,963.53

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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.