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Finding the Fourth Proportional to 146,220.80, 219,352.80 and 46,390.40

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Solution

The fourth proportional to 146,220.80, 219,352.80 and 46,390.40 is: 69,592.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,220.80 : 219,352.80 = 46,390.40 : x
  2. Step 2: Convert to fraction form
    146,220.80/219,352.80 = 46,390.40/x
  3. Step 3: Cross multiply
    146,220.80x = 219,352.80 × 46,390.40
  4. Step 4: Simplify right side
    146,220.80x = 10,175,864,133.12
  5. Step 5: Solve for x
    x = 10,175,864,133.12/146,220.80
  6. Step 6: Final answer
    x = 69,592.45

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1.5x scale

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.