Home / 284,077.28-392,027.76-156,756.56

Finding the Fourth Proportional to 284,077.28, 392,027.76 and 156,756.56

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Solution

The fourth proportional to 284,077.28, 392,027.76 and 156,756.56 is: 216,324.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,077.28 : 392,027.76 = 156,756.56 : x
  2. Step 2: Convert to fraction form
    284,077.28/392,027.76 = 156,756.56/x
  3. Step 3: Cross multiply
    284,077.28x = 392,027.76 × 156,756.56
  4. Step 4: Simplify right side
    284,077.28x = 61,452,923,082.11
  5. Step 5: Solve for x
    x = 61,452,923,082.11/284,077.28
  6. Step 6: Final answer
    x = 216,324.67

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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.