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Finding the Fourth Proportional to 416,304.77, 574,514.51 and 255,128.69

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Solution

The fourth proportional to 416,304.77, 574,514.51 and 255,128.69 is: 352,086.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,304.77 : 574,514.51 = 255,128.69 : x
  2. Step 2: Convert to fraction form
    416,304.77/574,514.51 = 255,128.69/x
  3. Step 3: Cross multiply
    416,304.77x = 574,514.51 × 255,128.69
  4. Step 4: Simplify right side
    416,304.77x = 146,575,130,174.08
  5. Step 5: Solve for x
    x = 146,575,130,174.08/416,304.77
  6. Step 6: Final answer
    x = 352,086.12

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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.