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Finding the Fourth Proportional to 246,643.20, 369,964.80 and 238,478.40

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Solution

The fourth proportional to 246,643.20, 369,964.80 and 238,478.40 is: 357,717.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,643.20 : 369,964.80 = 238,478.40 : x
  2. Step 2: Convert to fraction form
    246,643.20/369,964.80 = 238,478.40/x
  3. Step 3: Cross multiply
    246,643.20x = 369,964.80 × 238,478.40
  4. Step 4: Simplify right side
    246,643.20x = 88,228,613,560.32
  5. Step 5: Solve for x
    x = 88,228,613,560.32/246,643.20
  6. Step 6: Final answer
    x = 357,717.60

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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.