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Finding the Fourth Proportional to 495,431.32, 742,179.50 and 235,398.86

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Solution

The fourth proportional to 495,431.32, 742,179.50 and 235,398.86 is: 352,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,431.32 : 742,179.50 = 235,398.86 : x
  2. Step 2: Convert to fraction form
    495,431.32/742,179.50 = 235,398.86/x
  3. Step 3: Cross multiply
    495,431.32x = 742,179.50 × 235,398.86
  4. Step 4: Simplify right side
    495,431.32x = 174,708,208,215.37
  5. Step 5: Solve for x
    x = 174,708,208,215.37/495,431.32
  6. Step 6: Final answer
    x = 352,638.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.