Home / 282,011.04-389,173.20-154,685.76

Finding the Fourth Proportional to 282,011.04, 389,173.20 and 154,685.76

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Solution

The fourth proportional to 282,011.04, 389,173.20 and 154,685.76 is: 213,465.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,011.04 : 389,173.20 = 154,685.76 : x
  2. Step 2: Convert to fraction form
    282,011.04/389,173.20 = 154,685.76/x
  3. Step 3: Cross multiply
    282,011.04x = 389,173.20 × 154,685.76
  4. Step 4: Simplify right side
    282,011.04x = 60,199,552,213.63
  5. Step 5: Solve for x
    x = 60,199,552,213.63/282,011.04
  6. Step 6: Final answer
    x = 213,465.23

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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.