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Finding the Fourth Proportional to 489,987.09, 735,188.64 and 237,455.55

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Solution

The fourth proportional to 489,987.09, 735,188.64 and 237,455.55 is: 356,284.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,987.09 : 735,188.64 = 237,455.55 : x
  2. Step 2: Convert to fraction form
    489,987.09/735,188.64 = 237,455.55/x
  3. Step 3: Cross multiply
    489,987.09x = 735,188.64 × 237,455.55
  4. Step 4: Simplify right side
    489,987.09x = 174,574,622,864.95
  5. Step 5: Solve for x
    x = 174,574,622,864.95/489,987.09
  6. Step 6: Final answer
    x = 356,284.13

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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.