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Finding the Fourth Proportional to 295,513.60, 442,816.80 and 220,280.80

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Solution

The fourth proportional to 295,513.60, 442,816.80 and 220,280.80 is: 330,083.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,513.60 : 442,816.80 = 220,280.80 : x
  2. Step 2: Convert to fraction form
    295,513.60/442,816.80 = 220,280.80/x
  3. Step 3: Cross multiply
    295,513.60x = 442,816.80 × 220,280.80
  4. Step 4: Simplify right side
    295,513.60x = 97,544,038,957.44
  5. Step 5: Solve for x
    x = 97,544,038,957.44/295,513.60
  6. Step 6: Final answer
    x = 330,083.08

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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.