Home / 402,435.20-603,733.80-118,125.20

Finding the Fourth Proportional to 402,435.20, 603,733.80 and 118,125.20

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Solution

The fourth proportional to 402,435.20, 603,733.80 and 118,125.20 is: 177,211.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,435.20 : 603,733.80 = 118,125.20 : x
  2. Step 2: Convert to fraction form
    402,435.20/603,733.80 = 118,125.20/x
  3. Step 3: Cross multiply
    402,435.20x = 603,733.80 × 118,125.20
  4. Step 4: Simplify right side
    402,435.20x = 71,316,175,871.76
  5. Step 5: Solve for x
    x = 71,316,175,871.76/402,435.20
  6. Step 6: Final answer
    x = 177,211.58

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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.