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Finding the Fourth Proportional to 260,058.60, 358,875.36 and 145,338.30

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Solution

The fourth proportional to 260,058.60, 358,875.36 and 145,338.30 is: 200,563.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,058.60 : 358,875.36 = 145,338.30 : x
  2. Step 2: Convert to fraction form
    260,058.60/358,875.36 = 145,338.30/x
  3. Step 3: Cross multiply
    260,058.60x = 358,875.36 × 145,338.30
  4. Step 4: Simplify right side
    260,058.60x = 52,158,334,734.29
  5. Step 5: Solve for x
    x = 52,158,334,734.29/260,058.60
  6. Step 6: Final answer
    x = 200,563.78

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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.