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Finding the Fourth Proportional to 243,034.40, 364,551.60 and 153,999.20

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Solution

The fourth proportional to 243,034.40, 364,551.60 and 153,999.20 is: 230,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,034.40 : 364,551.60 = 153,999.20 : x
  2. Step 2: Convert to fraction form
    243,034.40/364,551.60 = 153,999.20/x
  3. Step 3: Cross multiply
    243,034.40x = 364,551.60 × 153,999.20
  4. Step 4: Simplify right side
    243,034.40x = 56,140,654,758.72
  5. Step 5: Solve for x
    x = 56,140,654,758.72/243,034.40
  6. Step 6: Final answer
    x = 230,998.80

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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.