Home / 380,236.60-570,325.20-99,746.56

Finding the Fourth Proportional to 380,236.60, 570,325.20 and 99,746.56

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Solution

The fourth proportional to 380,236.60, 570,325.20 and 99,746.56 is: 149,612.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,236.60 : 570,325.20 = 99,746.56 : x
  2. Step 2: Convert to fraction form
    380,236.60/570,325.20 = 99,746.56/x
  3. Step 3: Cross multiply
    380,236.60x = 570,325.20 × 99,746.56
  4. Step 4: Simplify right side
    380,236.60x = 56,887,976,781.31
  5. Step 5: Solve for x
    x = 56,887,976,781.31/380,236.60
  6. Step 6: Final answer
    x = 149,612.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.