Home / 283,052.83-390,607.36-155,730.55

Finding the Fourth Proportional to 283,052.83, 390,607.36 and 155,730.55

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Solution

The fourth proportional to 283,052.83, 390,607.36 and 155,730.55 is: 214,905.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,052.83 : 390,607.36 = 155,730.55 : x
  2. Step 2: Convert to fraction form
    283,052.83/390,607.36 = 155,730.55/x
  3. Step 3: Cross multiply
    283,052.83x = 390,607.36 × 155,730.55
  4. Step 4: Simplify right side
    283,052.83x = 60,829,499,006.85
  5. Step 5: Solve for x
    x = 60,829,499,006.85/283,052.83
  6. Step 6: Final answer
    x = 214,905.11

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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.