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Finding the Fourth Proportional to 243,000.40, 364,500.60 and 216,428.35

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Solution

The fourth proportional to 243,000.40, 364,500.60 and 216,428.35 is: 324,642.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,000.40 : 364,500.60 = 216,428.35 : x
  2. Step 2: Convert to fraction form
    243,000.40/364,500.60 = 216,428.35/x
  3. Step 3: Cross multiply
    243,000.40x = 364,500.60 × 216,428.35
  4. Step 4: Simplify right side
    243,000.40x = 78,888,263,432.01
  5. Step 5: Solve for x
    x = 78,888,263,432.01/243,000.40
  6. Step 6: Final answer
    x = 324,642.53

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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.