Home / 370,815.40-556,223.10-121,497.40

Finding the Fourth Proportional to 370,815.40, 556,223.10 and 121,497.40

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Solution

The fourth proportional to 370,815.40, 556,223.10 and 121,497.40 is: 182,246.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,815.40 : 556,223.10 = 121,497.40 : x
  2. Step 2: Convert to fraction form
    370,815.40/556,223.10 = 121,497.40/x
  3. Step 3: Cross multiply
    370,815.40x = 556,223.10 × 121,497.40
  4. Step 4: Simplify right side
    370,815.40x = 67,579,660,469.94
  5. Step 5: Solve for x
    x = 67,579,660,469.94/370,815.40
  6. Step 6: Final answer
    x = 182,246.10

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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.