Home / 284,295.48-392,328.58-155,234.20

Finding the Fourth Proportional to 284,295.48, 392,328.58 and 155,234.20

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Solution

The fourth proportional to 284,295.48, 392,328.58 and 155,234.20 is: 214,223.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,295.48 : 392,328.58 = 155,234.20 : x
  2. Step 2: Convert to fraction form
    284,295.48/392,328.58 = 155,234.20/x
  3. Step 3: Cross multiply
    284,295.48x = 392,328.58 × 155,234.20
  4. Step 4: Simplify right side
    284,295.48x = 60,902,813,253.44
  5. Step 5: Solve for x
    x = 60,902,813,253.44/284,295.48
  6. Step 6: Final answer
    x = 214,223.64

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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.