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Finding the Fourth Proportional to 442,689.84, 610,870.80 and 251,665.92

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Solution

The fourth proportional to 442,689.84, 610,870.80 and 251,665.92 is: 347,275.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,689.84 : 610,870.80 = 251,665.92 : x
  2. Step 2: Convert to fraction form
    442,689.84/610,870.80 = 251,665.92/x
  3. Step 3: Cross multiply
    442,689.84x = 610,870.80 × 251,665.92
  4. Step 4: Simplify right side
    442,689.84x = 153,735,361,883.14
  5. Step 5: Solve for x
    x = 153,735,361,883.14/442,689.84
  6. Step 6: Final answer
    x = 347,275.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.