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Finding the Fourth Proportional to 245,877.30, 368,748.45 and 155,784.78

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Solution

The fourth proportional to 245,877.30, 368,748.45 and 155,784.78 is: 233,634.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,877.30 : 368,748.45 = 155,784.78 : x
  2. Step 2: Convert to fraction form
    245,877.30/368,748.45 = 155,784.78/x
  3. Step 3: Cross multiply
    245,877.30x = 368,748.45 × 155,784.78
  4. Step 4: Simplify right side
    245,877.30x = 57,445,396,158.59
  5. Step 5: Solve for x
    x = 57,445,396,158.59/245,877.30
  6. Step 6: Final answer
    x = 233,634.40

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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.