Home / 223,812.04-308,841.78-128,296.84

Finding the Fourth Proportional to 223,812.04, 308,841.78 and 128,296.84

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Solution

The fourth proportional to 223,812.04, 308,841.78 and 128,296.84 is: 177,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,812.04 : 308,841.78 = 128,296.84 : x
  2. Step 2: Convert to fraction form
    223,812.04/308,841.78 = 128,296.84/x
  3. Step 3: Cross multiply
    223,812.04x = 308,841.78 × 128,296.84
  4. Step 4: Simplify right side
    223,812.04x = 39,623,424,433.98
  5. Step 5: Solve for x
    x = 39,623,424,433.98/223,812.04
  6. Step 6: Final answer
    x = 177,038.84

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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.