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Finding the Fourth Proportional to 417,394.85, 575,365.75 and 255,950.51

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Solution

The fourth proportional to 417,394.85, 575,365.75 and 255,950.51 is: 352,819.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,394.85 : 575,365.75 = 255,950.51 : x
  2. Step 2: Convert to fraction form
    417,394.85/575,365.75 = 255,950.51/x
  3. Step 3: Cross multiply
    417,394.85x = 575,365.75 × 255,950.51
  4. Step 4: Simplify right side
    417,394.85x = 147,265,153,632.33
  5. Step 5: Solve for x
    x = 147,265,153,632.33/417,394.85
  6. Step 6: Final answer
    x = 352,819.77

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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.