Home / 399,127.50-550,795.95-272,025.14

Finding the Fourth Proportional to 399,127.50, 550,795.95 and 272,025.14

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Solution

The fourth proportional to 399,127.50, 550,795.95 and 272,025.14 is: 375,394.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,127.50 : 550,795.95 = 272,025.14 : x
  2. Step 2: Convert to fraction form
    399,127.50/550,795.95 = 272,025.14/x
  3. Step 3: Cross multiply
    399,127.50x = 550,795.95 × 272,025.14
  4. Step 4: Simplify right side
    399,127.50x = 149,830,342,656.20
  5. Step 5: Solve for x
    x = 149,830,342,656.20/399,127.50
  6. Step 6: Final answer
    x = 375,394.69

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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.