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Finding the Fourth Proportional to 201,530.68, 278,113.64 and 110,892.40

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Solution

The fourth proportional to 201,530.68, 278,113.64 and 110,892.40 is: 153,032.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,530.68 : 278,113.64 = 110,892.40 : x
  2. Step 2: Convert to fraction form
    201,530.68/278,113.64 = 110,892.40/x
  3. Step 3: Cross multiply
    201,530.68x = 278,113.64 × 110,892.40
  4. Step 4: Simplify right side
    201,530.68x = 30,840,689,012.34
  5. Step 5: Solve for x
    x = 30,840,689,012.34/201,530.68
  6. Step 6: Final answer
    x = 153,032.23

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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.