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Finding the Fourth Proportional to 449,862.04, 620,810.22 and 258,871.64

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Solution

The fourth proportional to 449,862.04, 620,810.22 and 258,871.64 is: 357,243.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,862.04 : 620,810.22 = 258,871.64 : x
  2. Step 2: Convert to fraction form
    449,862.04/620,810.22 = 258,871.64/x
  3. Step 3: Cross multiply
    449,862.04x = 620,810.22 × 258,871.64
  4. Step 4: Simplify right side
    449,862.04x = 160,710,159,780.16
  5. Step 5: Solve for x
    x = 160,710,159,780.16/449,862.04
  6. Step 6: Final answer
    x = 357,243.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.