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Finding the Fourth Proportional to 495,005.10, 742,508.73 and 228,687.90

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Solution

The fourth proportional to 495,005.10, 742,508.73 and 228,687.90 is: 343,032.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,005.10 : 742,508.73 = 228,687.90 : x
  2. Step 2: Convert to fraction form
    495,005.10/742,508.73 = 228,687.90/x
  3. Step 3: Cross multiply
    495,005.10x = 742,508.73 × 228,687.90
  4. Step 4: Simplify right side
    495,005.10x = 169,802,762,195.37
  5. Step 5: Solve for x
    x = 169,802,762,195.37/495,005.10
  6. Step 6: Final answer
    x = 343,032.35

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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.