Home / 578,102.80-867,305.40-223,128.40

Finding the Fourth Proportional to 578,102.80, 867,305.40 and 223,128.40

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Solution

The fourth proportional to 578,102.80, 867,305.40 and 223,128.40 is: 334,750.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,102.80 : 867,305.40 = 223,128.40 : x
  2. Step 2: Convert to fraction form
    578,102.80/867,305.40 = 223,128.40/x
  3. Step 3: Cross multiply
    578,102.80x = 867,305.40 × 223,128.40
  4. Step 4: Simplify right side
    578,102.80x = 193,520,466,213.36
  5. Step 5: Solve for x
    x = 193,520,466,213.36/578,102.80
  6. Step 6: Final answer
    x = 334,750.96

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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.