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Finding the Fourth Proportional to 281,495.27, 388,463.27 and 152,433.69

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Solution

The fourth proportional to 281,495.27, 388,463.27 and 152,433.69 is: 210,358.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,495.27 : 388,463.27 = 152,433.69 : x
  2. Step 2: Convert to fraction form
    281,495.27/388,463.27 = 152,433.69/x
  3. Step 3: Cross multiply
    281,495.27x = 388,463.27 × 152,433.69
  4. Step 4: Simplify right side
    281,495.27x = 59,214,888,913.40
  5. Step 5: Solve for x
    x = 59,214,888,913.40/281,495.27
  6. Step 6: Final answer
    x = 210,358.38

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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.