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Finding the Fourth Proportional to 295,280.70, 442,921.05 and 162,570.30

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Solution

The fourth proportional to 295,280.70, 442,921.05 and 162,570.30 is: 243,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,280.70 : 442,921.05 = 162,570.30 : x
  2. Step 2: Convert to fraction form
    295,280.70/442,921.05 = 162,570.30/x
  3. Step 3: Cross multiply
    295,280.70x = 442,921.05 × 162,570.30
  4. Step 4: Simplify right side
    295,280.70x = 72,005,807,974.82
  5. Step 5: Solve for x
    x = 72,005,807,974.82/295,280.70
  6. Step 6: Final answer
    x = 243,855.45

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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.