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Finding the Fourth Proportional to 471,107.60, 650,139.18 and 256,259.15

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Solution

The fourth proportional to 471,107.60, 650,139.18 and 256,259.15 is: 353,643.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,107.60 : 650,139.18 = 256,259.15 : x
  2. Step 2: Convert to fraction form
    471,107.60/650,139.18 = 256,259.15/x
  3. Step 3: Cross multiply
    471,107.60x = 650,139.18 × 256,259.15
  4. Step 4: Simplify right side
    471,107.60x = 166,604,113,648.50
  5. Step 5: Solve for x
    x = 166,604,113,648.50/471,107.60
  6. Step 6: Final answer
    x = 353,643.44

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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.