Home / 358,788.10-537,999.90-209,059.60

Finding the Fourth Proportional to 358,788.10, 537,999.90 and 209,059.60

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Solution

The fourth proportional to 358,788.10, 537,999.90 and 209,059.60 is: 313,483.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,788.10 : 537,999.90 = 209,059.60 : x
  2. Step 2: Convert to fraction form
    358,788.10/537,999.90 = 209,059.60/x
  3. Step 3: Cross multiply
    358,788.10x = 537,999.90 × 209,059.60
  4. Step 4: Simplify right side
    358,788.10x = 112,474,043,894.04
  5. Step 5: Solve for x
    x = 112,474,043,894.04/358,788.10
  6. Step 6: Final answer
    x = 313,483.21

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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.