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Finding the Fourth Proportional to 611,735.10, 917,602.65 and 162,525.30

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Solution

The fourth proportional to 611,735.10, 917,602.65 and 162,525.30 is: 243,787.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,735.10 : 917,602.65 = 162,525.30 : x
  2. Step 2: Convert to fraction form
    611,735.10/917,602.65 = 162,525.30/x
  3. Step 3: Cross multiply
    611,735.10x = 917,602.65 × 162,525.30
  4. Step 4: Simplify right side
    611,735.10x = 149,133,645,972.05
  5. Step 5: Solve for x
    x = 149,133,645,972.05/611,735.10
  6. Step 6: Final answer
    x = 243,787.95

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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.