Home / 284,495.14-392,630.45-155,453.23

Finding the Fourth Proportional to 284,495.14, 392,630.45 and 155,453.23

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Solution

The fourth proportional to 284,495.14, 392,630.45 and 155,453.23 is: 214,540.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,495.14 : 392,630.45 = 155,453.23 : x
  2. Step 2: Convert to fraction form
    284,495.14/392,630.45 = 155,453.23/x
  3. Step 3: Cross multiply
    284,495.14x = 392,630.45 × 155,453.23
  4. Step 4: Simplify right side
    284,495.14x = 61,035,671,648.85
  5. Step 5: Solve for x
    x = 61,035,671,648.85/284,495.14
  6. Step 6: Final answer
    x = 214,540.30

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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.