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Finding the Fourth Proportional to 255,510.87, 382,975.66 and 155,450.50

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Solution

The fourth proportional to 255,510.87, 382,975.66 and 155,450.50 is: 232,998.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,510.87 : 382,975.66 = 155,450.50 : x
  2. Step 2: Convert to fraction form
    255,510.87/382,975.66 = 155,450.50/x
  3. Step 3: Cross multiply
    255,510.87x = 382,975.66 × 155,450.50
  4. Step 4: Simplify right side
    255,510.87x = 59,533,757,834.83
  5. Step 5: Solve for x
    x = 59,533,757,834.83/255,510.87
  6. Step 6: Final answer
    x = 232,998.92

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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.