Home / 265,966.20-399,095.10-108,307.80

Finding the Fourth Proportional to 265,966.20, 399,095.10 and 108,307.80

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Solution

The fourth proportional to 265,966.20, 399,095.10 and 108,307.80 is: 162,521.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,966.20 : 399,095.10 = 108,307.80 : x
  2. Step 2: Convert to fraction form
    265,966.20/399,095.10 = 108,307.80/x
  3. Step 3: Cross multiply
    265,966.20x = 399,095.10 × 108,307.80
  4. Step 4: Simplify right side
    265,966.20x = 43,225,112,271.78
  5. Step 5: Solve for x
    x = 43,225,112,271.78/265,966.20
  6. Step 6: Final answer
    x = 162,521.07

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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.