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Finding the Fourth Proportional to 545,348.88, 818,153.15 and 274,812.30

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Solution

The fourth proportional to 545,348.88, 818,153.15 and 274,812.30 is: 412,283.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,348.88 : 818,153.15 = 274,812.30 : x
  2. Step 2: Convert to fraction form
    545,348.88/818,153.15 = 274,812.30/x
  3. Step 3: Cross multiply
    545,348.88x = 818,153.15 × 274,812.30
  4. Step 4: Simplify right side
    545,348.88x = 224,838,547,529.68
  5. Step 5: Solve for x
    x = 224,838,547,529.68/545,348.88
  6. Step 6: Final answer
    x = 412,283.87

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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.