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Finding the Fourth Proportional to 298,815.67, 448,486.45 and 156,762.45

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Solution

The fourth proportional to 298,815.67, 448,486.45 and 156,762.45 is: 235,281.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,815.67 : 448,486.45 = 156,762.45 : x
  2. Step 2: Convert to fraction form
    298,815.67/448,486.45 = 156,762.45/x
  3. Step 3: Cross multiply
    298,815.67x = 448,486.45 × 156,762.45
  4. Step 4: Simplify right side
    298,815.67x = 70,305,834,693.80
  5. Step 5: Solve for x
    x = 70,305,834,693.80/298,815.67
  6. Step 6: Final answer
    x = 235,281.62

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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.