Home / 283,056.86-390,612.90-155,734.58

Finding the Fourth Proportional to 283,056.86, 390,612.90 and 155,734.58

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Solution

The fourth proportional to 283,056.86, 390,612.90 and 155,734.58 is: 214,910.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,056.86 : 390,612.90 = 155,734.58 : x
  2. Step 2: Convert to fraction form
    283,056.86/390,612.90 = 155,734.58/x
  3. Step 3: Cross multiply
    283,056.86x = 390,612.90 × 155,734.58
  4. Step 4: Simplify right side
    283,056.86x = 60,831,935,924.08
  5. Step 5: Solve for x
    x = 60,831,935,924.08/283,056.86
  6. Step 6: Final answer
    x = 214,910.66

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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.