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Finding the Fourth Proportional to 284,609.59, 392,762.46 and 155,550.67

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Solution

The fourth proportional to 284,609.59, 392,762.46 and 155,550.67 is: 214,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,609.59 : 392,762.46 = 155,550.67 : x
  2. Step 2: Convert to fraction form
    284,609.59/392,762.46 = 155,550.67/x
  3. Step 3: Cross multiply
    284,609.59x = 392,762.46 × 155,550.67
  4. Step 4: Simplify right side
    284,609.59x = 61,094,463,803.85
  5. Step 5: Solve for x
    x = 61,094,463,803.85/284,609.59
  6. Step 6: Final answer
    x = 214,660.59

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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.