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Finding the Fourth Proportional to 417,354.60, 575,312.52 and 255,910.32

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Solution

The fourth proportional to 417,354.60, 575,312.52 and 255,910.32 is: 352,765.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,354.60 : 575,312.52 = 255,910.32 : x
  2. Step 2: Convert to fraction form
    417,354.60/575,312.52 = 255,910.32/x
  3. Step 3: Cross multiply
    417,354.60x = 575,312.52 × 255,910.32
  4. Step 4: Simplify right side
    417,354.60x = 147,228,411,093.21
  5. Step 5: Solve for x
    x = 147,228,411,093.21/417,354.60
  6. Step 6: Final answer
    x = 352,765.76

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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.