Home / 403,208.20-604,812.30-261,490.60

Finding the Fourth Proportional to 403,208.20, 604,812.30 and 261,490.60

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Solution

The fourth proportional to 403,208.20, 604,812.30 and 261,490.60 is: 392,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,208.20 : 604,812.30 = 261,490.60 : x
  2. Step 2: Convert to fraction form
    403,208.20/604,812.30 = 261,490.60/x
  3. Step 3: Cross multiply
    403,208.20x = 604,812.30 × 261,490.60
  4. Step 4: Simplify right side
    403,208.20x = 158,152,731,214.38
  5. Step 5: Solve for x
    x = 158,152,731,214.38/403,208.20
  6. Step 6: Final answer
    x = 392,235.90

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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.