Home / 282,812.46-390,280.23-155,487.66

Finding the Fourth Proportional to 282,812.46, 390,280.23 and 155,487.66

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Solution

The fourth proportional to 282,812.46, 390,280.23 and 155,487.66 is: 214,572.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,812.46 : 390,280.23 = 155,487.66 : x
  2. Step 2: Convert to fraction form
    282,812.46/390,280.23 = 155,487.66/x
  3. Step 3: Cross multiply
    282,812.46x = 390,280.23 × 155,487.66
  4. Step 4: Simplify right side
    282,812.46x = 60,683,759,706.96
  5. Step 5: Solve for x
    x = 60,683,759,706.96/282,812.46
  6. Step 6: Final answer
    x = 214,572.44

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1.5x scale

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.