Home / 282,732.18-390,170.70-155,405.04

Finding the Fourth Proportional to 282,732.18, 390,170.70 and 155,405.04

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Solution

The fourth proportional to 282,732.18, 390,170.70 and 155,405.04 is: 214,459.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,732.18 : 390,170.70 = 155,405.04 : x
  2. Step 2: Convert to fraction form
    282,732.18/390,170.70 = 155,405.04/x
  3. Step 3: Cross multiply
    282,732.18x = 390,170.70 × 155,405.04
  4. Step 4: Simplify right side
    282,732.18x = 60,634,493,240.33
  5. Step 5: Solve for x
    x = 60,634,493,240.33/282,732.18
  6. Step 6: Final answer
    x = 214,459.12

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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.