Home / 231,219.04-346,856.32-81,428.35

Finding the Fourth Proportional to 231,219.04, 346,856.32 and 81,428.35

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Solution

The fourth proportional to 231,219.04, 346,856.32 and 81,428.35 is: 122,152.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,219.04 : 346,856.32 = 81,428.35 : x
  2. Step 2: Convert to fraction form
    231,219.04/346,856.32 = 81,428.35/x
  3. Step 3: Cross multiply
    231,219.04x = 346,856.32 × 81,428.35
  4. Step 4: Simplify right side
    231,219.04x = 28,243,936,090.39
  5. Step 5: Solve for x
    x = 28,243,936,090.39/231,219.04
  6. Step 6: Final answer
    x = 122,152.30

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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.