Home / 282,877.04-390,380.76-155,563.76

Finding the Fourth Proportional to 282,877.04, 390,380.76 and 155,563.76

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Solution

The fourth proportional to 282,877.04, 390,380.76 and 155,563.76 is: 214,683.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,877.04 : 390,380.76 = 155,563.76 : x
  2. Step 2: Convert to fraction form
    282,877.04/390,380.76 = 155,563.76/x
  3. Step 3: Cross multiply
    282,877.04x = 390,380.76 × 155,563.76
  4. Step 4: Simplify right side
    282,877.04x = 60,729,098,857.26
  5. Step 5: Solve for x
    x = 60,729,098,857.26/282,877.04
  6. Step 6: Final answer
    x = 214,683.73

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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.