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Finding the Fourth Proportional to 495,431.06, 742,179.12 and 235,398.62

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Solution

The fourth proportional to 495,431.06, 742,179.12 and 235,398.62 is: 352,638.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,431.06 : 742,179.12 = 235,398.62 : x
  2. Step 2: Convert to fraction form
    495,431.06/742,179.12 = 235,398.62/x
  3. Step 3: Cross multiply
    495,431.06x = 742,179.12 × 235,398.62
  4. Step 4: Simplify right side
    495,431.06x = 174,707,940,640.81
  5. Step 5: Solve for x
    x = 174,707,940,640.81/495,431.06
  6. Step 6: Final answer
    x = 352,638.25

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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.