Home / 282,739.83-390,161.06-155,423.67

Finding the Fourth Proportional to 282,739.83, 390,161.06 and 155,423.67

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Solution

The fourth proportional to 282,739.83, 390,161.06 and 155,423.67 is: 214,473.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,739.83 : 390,161.06 = 155,423.67 : x
  2. Step 2: Convert to fraction form
    282,739.83/390,161.06 = 155,423.67/x
  3. Step 3: Cross multiply
    282,739.83x = 390,161.06 × 155,423.67
  4. Step 4: Simplify right side
    282,739.83x = 60,640,263,059.17
  5. Step 5: Solve for x
    x = 60,640,263,059.17/282,739.83
  6. Step 6: Final answer
    x = 214,473.72

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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.