Home / 282,905.44-390,401.74-155,581.04

Finding the Fourth Proportional to 282,905.44, 390,401.74 and 155,581.04

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Solution

The fourth proportional to 282,905.44, 390,401.74 and 155,581.04 is: 214,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,905.44 : 390,401.74 = 155,581.04 : x
  2. Step 2: Convert to fraction form
    282,905.44/390,401.74 = 155,581.04/x
  3. Step 3: Cross multiply
    282,905.44x = 390,401.74 × 155,581.04
  4. Step 4: Simplify right side
    282,905.44x = 60,739,108,727.01
  5. Step 5: Solve for x
    x = 60,739,108,727.01/282,905.44
  6. Step 6: Final answer
    x = 214,697.56

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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.