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Finding the Fourth Proportional to 611,522.61, 917,329.02 and 162,233.53

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Solution

The fourth proportional to 611,522.61, 917,329.02 and 162,233.53 is: 243,362.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,522.61 : 917,329.02 = 162,233.53 : x
  2. Step 2: Convert to fraction form
    611,522.61/917,329.02 = 162,233.53/x
  3. Step 3: Cross multiply
    611,522.61x = 917,329.02 × 162,233.53
  4. Step 4: Simplify right side
    611,522.61x = 148,821,519,688.23
  5. Step 5: Solve for x
    x = 148,821,519,688.23/611,522.61
  6. Step 6: Final answer
    x = 243,362.25

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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.