Home / 476,023.05-656,918.51-261,159.21

Finding the Fourth Proportional to 476,023.05, 656,918.51 and 261,159.21

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Solution

The fourth proportional to 476,023.05, 656,918.51 and 261,159.21 is: 360,403.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,023.05 : 656,918.51 = 261,159.21 : x
  2. Step 2: Convert to fraction form
    476,023.05/656,918.51 = 261,159.21/x
  3. Step 3: Cross multiply
    476,023.05x = 656,918.51 × 261,159.21
  4. Step 4: Simplify right side
    476,023.05x = 171,560,317,800.18
  5. Step 5: Solve for x
    x = 171,560,317,800.18/476,023.05
  6. Step 6: Final answer
    x = 360,403.38

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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.