Home / 282,914.40-390,414.08-155,590

Finding the Fourth Proportional to 282,914.40, 390,414.08 and 155,590

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Solution

The fourth proportional to 282,914.40, 390,414.08 and 155,590 is: 214,709.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,914.40 : 390,414.08 = 155,590 : x
  2. Step 2: Convert to fraction form
    282,914.40/390,414.08 = 155,590/x
  3. Step 3: Cross multiply
    282,914.40x = 390,414.08 × 155,590
  4. Step 4: Simplify right side
    282,914.40x = 60,744,526,707.20
  5. Step 5: Solve for x
    x = 60,744,526,707.20/282,914.40
  6. Step 6: Final answer
    x = 214,709.91

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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.