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Finding the Fourth Proportional to 328,136, 452,829.12 and 190,342.08

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Solution

The fourth proportional to 328,136, 452,829.12 and 190,342.08 is: 262,672.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,136 : 452,829.12 = 190,342.08 : x
  2. Step 2: Convert to fraction form
    328,136/452,829.12 = 190,342.08/x
  3. Step 3: Cross multiply
    328,136x = 452,829.12 × 190,342.08
  4. Step 4: Simplify right side
    328,136x = 86,192,436,585.37
  5. Step 5: Solve for x
    x = 86,192,436,585.37/328,136
  6. Step 6: Final answer
    x = 262,672.91

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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.