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Finding the Fourth Proportional to 246,403.60, 369,605.40 and 221,520.40

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Solution

The fourth proportional to 246,403.60, 369,605.40 and 221,520.40 is: 332,280.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,403.60 : 369,605.40 = 221,520.40 : x
  2. Step 2: Convert to fraction form
    246,403.60/369,605.40 = 221,520.40/x
  3. Step 3: Cross multiply
    246,403.60x = 369,605.40 × 221,520.40
  4. Step 4: Simplify right side
    246,403.60x = 81,875,136,050.16
  5. Step 5: Solve for x
    x = 81,875,136,050.16/246,403.60
  6. Step 6: Final answer
    x = 332,280.60

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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.