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Finding the Fourth Proportional to 443,442.81, 611,950.98 and 239,493.72

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Solution

The fourth proportional to 443,442.81, 611,950.98 and 239,493.72 is: 330,501.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,442.81 : 611,950.98 = 239,493.72 : x
  2. Step 2: Convert to fraction form
    443,442.81/611,950.98 = 239,493.72/x
  3. Step 3: Cross multiply
    443,442.81x = 611,950.98 × 239,493.72
  4. Step 4: Simplify right side
    443,442.81x = 146,558,416,657.85
  5. Step 5: Solve for x
    x = 146,558,416,657.85/443,442.81
  6. Step 6: Final answer
    x = 330,501.28

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1.5x scale

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.