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Finding the Fourth Proportional to 260,472.49, 390,706.54 and 203,594.23

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Solution

The fourth proportional to 260,472.49, 390,706.54 and 203,594.23 is: 305,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,472.49 : 390,706.54 = 203,594.23 : x
  2. Step 2: Convert to fraction form
    260,472.49/390,706.54 = 203,594.23/x
  3. Step 3: Cross multiply
    260,472.49x = 390,706.54 × 203,594.23
  4. Step 4: Simplify right side
    260,472.49x = 79,545,596,149.29
  5. Step 5: Solve for x
    x = 79,545,596,149.29/260,472.49
  6. Step 6: Final answer
    x = 305,389.63

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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.