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Finding the Fourth Proportional to 295,426.80, 442,837.80 and 145,436.40

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Solution

The fourth proportional to 295,426.80, 442,837.80 and 145,436.40 is: 218,005.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,426.80 : 442,837.80 = 145,436.40 : x
  2. Step 2: Convert to fraction form
    295,426.80/442,837.80 = 145,436.40/x
  3. Step 3: Cross multiply
    295,426.80x = 442,837.80 × 145,436.40
  4. Step 4: Simplify right side
    295,426.80x = 64,404,735,415.92
  5. Step 5: Solve for x
    x = 64,404,735,415.92/295,426.80
  6. Step 6: Final answer
    x = 218,005.73

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1.5x scale

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.