Home / 282,842.70-390,324.33-155,526.45

Finding the Fourth Proportional to 282,842.70, 390,324.33 and 155,526.45

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Solution

The fourth proportional to 282,842.70, 390,324.33 and 155,526.45 is: 214,627.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,842.70 : 390,324.33 = 155,526.45 : x
  2. Step 2: Convert to fraction form
    282,842.70/390,324.33 = 155,526.45/x
  3. Step 3: Cross multiply
    282,842.70x = 390,324.33 × 155,526.45
  4. Step 4: Simplify right side
    282,842.70x = 60,705,757,393.53
  5. Step 5: Solve for x
    x = 60,705,757,393.53/282,842.70
  6. Step 6: Final answer
    x = 214,627.27

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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.