Home / 388,889.10-583,333.65-122,731.20

Finding the Fourth Proportional to 388,889.10, 583,333.65 and 122,731.20

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Solution

The fourth proportional to 388,889.10, 583,333.65 and 122,731.20 is: 184,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,889.10 : 583,333.65 = 122,731.20 : x
  2. Step 2: Convert to fraction form
    388,889.10/583,333.65 = 122,731.20/x
  3. Step 3: Cross multiply
    388,889.10x = 583,333.65 × 122,731.20
  4. Step 4: Simplify right side
    388,889.10x = 71,593,238,864.88
  5. Step 5: Solve for x
    x = 71,593,238,864.88/388,889.10
  6. Step 6: Final answer
    x = 184,096.80

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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.