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Finding the Fourth Proportional to 243,010.40, 364,515.60 and 216,438.35

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Solution

The fourth proportional to 243,010.40, 364,515.60 and 216,438.35 is: 324,657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,010.40 : 364,515.60 = 216,438.35 : x
  2. Step 2: Convert to fraction form
    243,010.40/364,515.60 = 216,438.35/x
  3. Step 3: Cross multiply
    243,010.40x = 364,515.60 × 216,438.35
  4. Step 4: Simplify right side
    243,010.40x = 78,895,155,013.26
  5. Step 5: Solve for x
    x = 78,895,155,013.26/243,010.40
  6. Step 6: Final answer
    x = 324,657.53

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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.