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Finding the Fourth Proportional to 455,159.20, 628,106.64 and 253,950.88

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Solution

The fourth proportional to 455,159.20, 628,106.64 and 253,950.88 is: 350,444.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,159.20 : 628,106.64 = 253,950.88 : x
  2. Step 2: Convert to fraction form
    455,159.20/628,106.64 = 253,950.88/x
  3. Step 3: Cross multiply
    455,159.20x = 628,106.64 × 253,950.88
  4. Step 4: Simplify right side
    455,159.20x = 159,508,233,961.84
  5. Step 5: Solve for x
    x = 159,508,233,961.84/455,159.20
  6. Step 6: Final answer
    x = 350,444.93

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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.