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Finding the Fourth Proportional to 402,725.32, 604,089.98 and 122,245

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Solution

The fourth proportional to 402,725.32, 604,089.98 and 122,245 is: 183,368.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,725.32 : 604,089.98 = 122,245 : x
  2. Step 2: Convert to fraction form
    402,725.32/604,089.98 = 122,245/x
  3. Step 3: Cross multiply
    402,725.32x = 604,089.98 × 122,245
  4. Step 4: Simplify right side
    402,725.32x = 73,846,979,605.10
  5. Step 5: Solve for x
    x = 73,846,979,605.10/402,725.32
  6. Step 6: Final answer
    x = 183,368.11

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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.