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Finding the Fourth Proportional to 355,283.40, 532,859.75 and 155,566.56

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Solution

The fourth proportional to 355,283.40, 532,859.75 and 155,566.56 is: 233,321.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,283.40 : 532,859.75 = 155,566.56 : x
  2. Step 2: Convert to fraction form
    355,283.40/532,859.75 = 155,566.56/x
  3. Step 3: Cross multiply
    355,283.40x = 532,859.75 × 155,566.56
  4. Step 4: Simplify right side
    355,283.40x = 82,895,157,492.13
  5. Step 5: Solve for x
    x = 82,895,157,492.13/355,283.40
  6. Step 6: Final answer
    x = 233,321.22

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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.