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Finding the Fourth Proportional to 437,521, 603,779.40 and 236,317

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Solution

The fourth proportional to 437,521, 603,779.40 and 236,317 is: 326,117.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,521 : 603,779.40 = 236,317 : x
  2. Step 2: Convert to fraction form
    437,521/603,779.40 = 236,317/x
  3. Step 3: Cross multiply
    437,521x = 603,779.40 × 236,317
  4. Step 4: Simplify right side
    437,521x = 142,683,336,469.80
  5. Step 5: Solve for x
    x = 142,683,336,469.80/437,521
  6. Step 6: Final answer
    x = 326,117.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.