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Finding the Fourth Proportional to 242,824.80, 364,237.20 and 85,000.80

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Solution

The fourth proportional to 242,824.80, 364,237.20 and 85,000.80 is: 127,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,824.80 : 364,237.20 = 85,000.80 : x
  2. Step 2: Convert to fraction form
    242,824.80/364,237.20 = 85,000.80/x
  3. Step 3: Cross multiply
    242,824.80x = 364,237.20 × 85,000.80
  4. Step 4: Simplify right side
    242,824.80x = 30,960,453,389.76
  5. Step 5: Solve for x
    x = 30,960,453,389.76/242,824.80
  6. Step 6: Final answer
    x = 127,501.20

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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.