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Finding the Fourth Proportional to 243,963.87, 336,822.96 and 156,784.34

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Solution

The fourth proportional to 243,963.87, 336,822.96 and 156,784.34 is: 216,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,963.87 : 336,822.96 = 156,784.34 : x
  2. Step 2: Convert to fraction form
    243,963.87/336,822.96 = 156,784.34/x
  3. Step 3: Cross multiply
    243,963.87x = 336,822.96 × 156,784.34
  4. Step 4: Simplify right side
    243,963.87x = 52,808,565,480.45
  5. Step 5: Solve for x
    x = 52,808,565,480.45/243,963.87
  6. Step 6: Final answer
    x = 216,460.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.