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Finding the Fourth Proportional to 355,706.61, 533,560.83 and 145,344.55

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Solution

The fourth proportional to 355,706.61, 533,560.83 and 145,344.55 is: 218,017.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,706.61 : 533,560.83 = 145,344.55 : x
  2. Step 2: Convert to fraction form
    355,706.61/533,560.83 = 145,344.55/x
  3. Step 3: Cross multiply
    355,706.61x = 533,560.83 × 145,344.55
  4. Step 4: Simplify right side
    355,706.61x = 77,550,156,673.35
  5. Step 5: Solve for x
    x = 77,550,156,673.35/355,706.61
  6. Step 6: Final answer
    x = 218,017.19

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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.