Home / 402,359.10-603,999.45-236,240.70

Finding the Fourth Proportional to 402,359.10, 603,999.45 and 236,240.70

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Solution

The fourth proportional to 402,359.10, 603,999.45 and 236,240.70 is: 354,631.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,359.10 : 603,999.45 = 236,240.70 : x
  2. Step 2: Convert to fraction form
    402,359.10/603,999.45 = 236,240.70/x
  3. Step 3: Cross multiply
    402,359.10x = 603,999.45 × 236,240.70
  4. Step 4: Simplify right side
    402,359.10x = 142,689,252,867.62
  5. Step 5: Solve for x
    x = 142,689,252,867.62/402,359.10
  6. Step 6: Final answer
    x = 354,631.60

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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.