Home / 282,639.90-389,946.60-175,170.72

Finding the Fourth Proportional to 282,639.90, 389,946.60 and 175,170.72

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Solution

The fourth proportional to 282,639.90, 389,946.60 and 175,170.72 is: 241,675.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,639.90 : 389,946.60 = 175,170.72 : x
  2. Step 2: Convert to fraction form
    282,639.90/389,946.60 = 175,170.72/x
  3. Step 3: Cross multiply
    282,639.90x = 389,946.60 × 175,170.72
  4. Step 4: Simplify right side
    282,639.90x = 68,307,226,683.55
  5. Step 5: Solve for x
    x = 68,307,226,683.55/282,639.90
  6. Step 6: Final answer
    x = 241,675.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.