Home / 346,869.20-520,408.60-164,639.86

Finding the Fourth Proportional to 346,869.20, 520,408.60 and 164,639.86

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Solution

The fourth proportional to 346,869.20, 520,408.60 and 164,639.86 is: 247,009.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,869.20 : 520,408.60 = 164,639.86 : x
  2. Step 2: Convert to fraction form
    346,869.20/520,408.60 = 164,639.86/x
  3. Step 3: Cross multiply
    346,869.20x = 520,408.60 × 164,639.86
  4. Step 4: Simplify right side
    346,869.20x = 85,679,997,334.17
  5. Step 5: Solve for x
    x = 85,679,997,334.17/346,869.20
  6. Step 6: Final answer
    x = 247,009.53

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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.