Home / 262,228.20-393,312.06-72,702.60

Finding the Fourth Proportional to 262,228.20, 393,312.06 and 72,702.60

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Solution

The fourth proportional to 262,228.20, 393,312.06 and 72,702.60 is: 109,045.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,228.20 : 393,312.06 = 72,702.60 : x
  2. Step 2: Convert to fraction form
    262,228.20/393,312.06 = 72,702.60/x
  3. Step 3: Cross multiply
    262,228.20x = 393,312.06 × 72,702.60
  4. Step 4: Simplify right side
    262,228.20x = 28,594,809,373.36
  5. Step 5: Solve for x
    x = 28,594,809,373.36/262,228.20
  6. Step 6: Final answer
    x = 109,045.52

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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.