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Finding the Fourth Proportional to 281,349.36, 388,299.08 and 160,462.94

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Solution

The fourth proportional to 281,349.36, 388,299.08 and 160,462.94 is: 221,459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,349.36 : 388,299.08 = 160,462.94 : x
  2. Step 2: Convert to fraction form
    281,349.36/388,299.08 = 160,462.94/x
  3. Step 3: Cross multiply
    281,349.36x = 388,299.08 × 160,462.94
  4. Step 4: Simplify right side
    281,349.36x = 62,307,611,005.35
  5. Step 5: Solve for x
    x = 62,307,611,005.35/281,349.36
  6. Step 6: Final answer
    x = 221,459.93

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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.