Home / 442,821.32-611,106.90-251,862.20

Finding the Fourth Proportional to 442,821.32, 611,106.90 and 251,862.20

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Solution

The fourth proportional to 442,821.32, 611,106.90 and 251,862.20 is: 347,577.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,821.32 : 611,106.90 = 251,862.20 : x
  2. Step 2: Convert to fraction form
    442,821.32/611,106.90 = 251,862.20/x
  3. Step 3: Cross multiply
    442,821.32x = 611,106.90 × 251,862.20
  4. Step 4: Simplify right side
    442,821.32x = 153,914,728,269.18
  5. Step 5: Solve for x
    x = 153,914,728,269.18/442,821.32
  6. Step 6: Final answer
    x = 347,577.50

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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.