Home / 358,833.20-537,585.60-209,145.20

Finding the Fourth Proportional to 358,833.20, 537,585.60 and 209,145.20

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Solution

The fourth proportional to 358,833.20, 537,585.60 and 209,145.20 is: 313,330.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,833.20 : 537,585.60 = 209,145.20 : x
  2. Step 2: Convert to fraction form
    358,833.20/537,585.60 = 209,145.20/x
  3. Step 3: Cross multiply
    358,833.20x = 537,585.60 × 209,145.20
  4. Step 4: Simplify right side
    358,833.20x = 112,433,447,829.12
  5. Step 5: Solve for x
    x = 112,433,447,829.12/358,833.20
  6. Step 6: Final answer
    x = 313,330.67

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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.