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Finding the Fourth Proportional to 272,384.80, 408,452.40 and 146,005.60

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Solution

The fourth proportional to 272,384.80, 408,452.40 and 146,005.60 is: 218,941.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,384.80 : 408,452.40 = 146,005.60 : x
  2. Step 2: Convert to fraction form
    272,384.80/408,452.40 = 146,005.60/x
  3. Step 3: Cross multiply
    272,384.80x = 408,452.40 × 146,005.60
  4. Step 4: Simplify right side
    272,384.80x = 59,636,337,733.44
  5. Step 5: Solve for x
    x = 59,636,337,733.44/272,384.80
  6. Step 6: Final answer
    x = 218,941.50

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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.