Home / 282,187.58-389,423.61-154,875.02

Finding the Fourth Proportional to 282,187.58, 389,423.61 and 154,875.02

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Solution

The fourth proportional to 282,187.58, 389,423.61 and 154,875.02 is: 213,730.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,187.58 : 389,423.61 = 154,875.02 : x
  2. Step 2: Convert to fraction form
    282,187.58/389,423.61 = 154,875.02/x
  3. Step 3: Cross multiply
    282,187.58x = 389,423.61 × 154,875.02
  4. Step 4: Simplify right side
    282,187.58x = 60,311,989,387.22
  5. Step 5: Solve for x
    x = 60,311,989,387.22/282,187.58
  6. Step 6: Final answer
    x = 213,730.13

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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.