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Finding the Fourth Proportional to 246,646.40, 369,969.60 and 209,904.80

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Solution

The fourth proportional to 246,646.40, 369,969.60 and 209,904.80 is: 314,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,646.40 : 369,969.60 = 209,904.80 : x
  2. Step 2: Convert to fraction form
    246,646.40/369,969.60 = 209,904.80/x
  3. Step 3: Cross multiply
    246,646.40x = 369,969.60 × 209,904.80
  4. Step 4: Simplify right side
    246,646.40x = 77,658,394,894.08
  5. Step 5: Solve for x
    x = 77,658,394,894.08/246,646.40
  6. Step 6: Final answer
    x = 314,857.20

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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.