Home / 456,128.29-629,438.47-252,166.24

Finding the Fourth Proportional to 456,128.29, 629,438.47 and 252,166.24

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Solution

The fourth proportional to 456,128.29, 629,438.47 and 252,166.24 is: 347,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,128.29 : 629,438.47 = 252,166.24 : x
  2. Step 2: Convert to fraction form
    456,128.29/629,438.47 = 252,166.24/x
  3. Step 3: Cross multiply
    456,128.29x = 629,438.47 × 252,166.24
  4. Step 4: Simplify right side
    456,128.29x = 158,723,132,291.25
  5. Step 5: Solve for x
    x = 158,723,132,291.25/456,128.29
  6. Step 6: Final answer
    x = 347,979.14

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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.