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Finding the Fourth Proportional to 223,525.98, 308,473.97 and 128,051.13

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Solution

The fourth proportional to 223,525.98, 308,473.97 and 128,051.13 is: 176,715.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,525.98 : 308,473.97 = 128,051.13 : x
  2. Step 2: Convert to fraction form
    223,525.98/308,473.97 = 128,051.13/x
  3. Step 3: Cross multiply
    223,525.98x = 308,473.97 × 128,051.13
  4. Step 4: Simplify right side
    223,525.98x = 39,500,440,443.17
  5. Step 5: Solve for x
    x = 39,500,440,443.17/223,525.98
  6. Step 6: Final answer
    x = 176,715.21

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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.