Home / 274,266.20-378,509.56-153,434.45

Finding the Fourth Proportional to 274,266.20, 378,509.56 and 153,434.45

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Solution

The fourth proportional to 274,266.20, 378,509.56 and 153,434.45 is: 211,751.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,266.20 : 378,509.56 = 153,434.45 : x
  2. Step 2: Convert to fraction form
    274,266.20/378,509.56 = 153,434.45/x
  3. Step 3: Cross multiply
    274,266.20x = 378,509.56 × 153,434.45
  4. Step 4: Simplify right side
    274,266.20x = 58,076,406,721.03
  5. Step 5: Solve for x
    x = 58,076,406,721.03/274,266.20
  6. Step 6: Final answer
    x = 211,751.96

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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.