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Finding the Fourth Proportional to 243,473.36, 365,228.42 and 72,681.60

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Solution

The fourth proportional to 243,473.36, 365,228.42 and 72,681.60 is: 109,027.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,473.36 : 365,228.42 = 72,681.60 : x
  2. Step 2: Convert to fraction form
    243,473.36/365,228.42 = 72,681.60/x
  3. Step 3: Cross multiply
    243,473.36x = 365,228.42 × 72,681.60
  4. Step 4: Simplify right side
    243,473.36x = 26,545,386,937.27
  5. Step 5: Solve for x
    x = 26,545,386,937.27/243,473.36
  6. Step 6: Final answer
    x = 109,027.89

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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.