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Finding the Fourth Proportional to 282,482, 389,825.52 and 155,160.08

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Solution

The fourth proportional to 282,482, 389,825.52 and 155,160.08 is: 214,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,482 : 389,825.52 = 155,160.08 : x
  2. Step 2: Convert to fraction form
    282,482/389,825.52 = 155,160.08/x
  3. Step 3: Cross multiply
    282,482x = 389,825.52 × 155,160.08
  4. Step 4: Simplify right side
    282,482x = 60,485,358,869.24
  5. Step 5: Solve for x
    x = 60,485,358,869.24/282,482
  6. Step 6: Final answer
    x = 214,121.11

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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.