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Finding the Fourth Proportional to 295,875.40, 442,938.30 and 278,573.80

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Solution

The fourth proportional to 295,875.40, 442,938.30 and 278,573.80 is: 417,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,875.40 : 442,938.30 = 278,573.80 : x
  2. Step 2: Convert to fraction form
    295,875.40/442,938.30 = 278,573.80/x
  3. Step 3: Cross multiply
    295,875.40x = 442,938.30 × 278,573.80
  4. Step 4: Simplify right side
    295,875.40x = 123,391,005,396.54
  5. Step 5: Solve for x
    x = 123,391,005,396.54/295,875.40
  6. Step 6: Final answer
    x = 417,037.05

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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.