Home / 282,188.08-389,424.30-154,875.52

Finding the Fourth Proportional to 282,188.08, 389,424.30 and 154,875.52

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Solution

The fourth proportional to 282,188.08, 389,424.30 and 154,875.52 is: 213,730.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,188.08 : 389,424.30 = 154,875.52 : x
  2. Step 2: Convert to fraction form
    282,188.08/389,424.30 = 154,875.52/x
  3. Step 3: Cross multiply
    282,188.08x = 389,424.30 × 154,875.52
  4. Step 4: Simplify right side
    282,188.08x = 60,312,290,963.14
  5. Step 5: Solve for x
    x = 60,312,290,963.14/282,188.08
  6. Step 6: Final answer
    x = 213,730.82

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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.