Home / 282,966.52-390,500.04-155,648.56

Finding the Fourth Proportional to 282,966.52, 390,500.04 and 155,648.56

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Solution

The fourth proportional to 282,966.52, 390,500.04 and 155,648.56 is: 214,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,966.52 : 390,500.04 = 155,648.56 : x
  2. Step 2: Convert to fraction form
    282,966.52/390,500.04 = 155,648.56/x
  3. Step 3: Cross multiply
    282,966.52x = 390,500.04 × 155,648.56
  4. Step 4: Simplify right side
    282,966.52x = 60,780,768,905.94
  5. Step 5: Solve for x
    x = 60,780,768,905.94/282,966.52
  6. Step 6: Final answer
    x = 214,798.45

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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.