Home / 257,539.22-385,810.65-144,877.10

Finding the Fourth Proportional to 257,539.22, 385,810.65 and 144,877.10

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Solution

The fourth proportional to 257,539.22, 385,810.65 and 144,877.10 is: 217,035.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,539.22 : 385,810.65 = 144,877.10 : x
  2. Step 2: Convert to fraction form
    257,539.22/385,810.65 = 144,877.10/x
  3. Step 3: Cross multiply
    257,539.22x = 385,810.65 × 144,877.10
  4. Step 4: Simplify right side
    257,539.22x = 55,895,128,121.12
  5. Step 5: Solve for x
    x = 55,895,128,121.12/257,539.22
  6. Step 6: Final answer
    x = 217,035.40

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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.