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Finding the Fourth Proportional to 257,250.76, 354,810.88 and 225,364.32

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Solution

The fourth proportional to 257,250.76, 354,810.88 and 225,364.32 is: 310,831.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,250.76 : 354,810.88 = 225,364.32 : x
  2. Step 2: Convert to fraction form
    257,250.76/354,810.88 = 225,364.32/x
  3. Step 3: Cross multiply
    257,250.76x = 354,810.88 × 225,364.32
  4. Step 4: Simplify right side
    257,250.76x = 79,961,712,699.80
  5. Step 5: Solve for x
    x = 79,961,712,699.80/257,250.76
  6. Step 6: Final answer
    x = 310,831.78

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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.