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Finding the Fourth Proportional to 603,368.53, 905,051.90 and 154,089.68

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Solution

The fourth proportional to 603,368.53, 905,051.90 and 154,089.68 is: 231,134.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,368.53 : 905,051.90 = 154,089.68 : x
  2. Step 2: Convert to fraction form
    603,368.53/905,051.90 = 154,089.68/x
  3. Step 3: Cross multiply
    603,368.53x = 905,051.90 × 154,089.68
  4. Step 4: Simplify right side
    603,368.53x = 139,459,153,514.36
  5. Step 5: Solve for x
    x = 139,459,153,514.36/603,368.53
  6. Step 6: Final answer
    x = 231,134.29

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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.