Home / 274,275.03-378,534.56-153,423.03

Finding the Fourth Proportional to 274,275.03, 378,534.56 and 153,423.03

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Solution

The fourth proportional to 274,275.03, 378,534.56 and 153,423.03 is: 211,743.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,275.03 : 378,534.56 = 153,423.03 : x
  2. Step 2: Convert to fraction form
    274,275.03/378,534.56 = 153,423.03/x
  3. Step 3: Cross multiply
    274,275.03x = 378,534.56 × 153,423.03
  4. Step 4: Simplify right side
    274,275.03x = 58,075,918,387.80
  5. Step 5: Solve for x
    x = 58,075,918,387.80/274,275.03
  6. Step 6: Final answer
    x = 211,743.37

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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.