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Finding the Fourth Proportional to 282,995.76, 390,544.44 and 155,681.04

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Solution

The fourth proportional to 282,995.76, 390,544.44 and 155,681.04 is: 214,845.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,995.76 : 390,544.44 = 155,681.04 : x
  2. Step 2: Convert to fraction form
    282,995.76/390,544.44 = 155,681.04/x
  3. Step 3: Cross multiply
    282,995.76x = 390,544.44 × 155,681.04
  4. Step 4: Simplify right side
    282,995.76x = 60,800,364,585.42
  5. Step 5: Solve for x
    x = 60,800,364,585.42/282,995.76
  6. Step 6: Final answer
    x = 214,845.50

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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.