Home / 282,745.62-390,194.28-155,421.18

Finding the Fourth Proportional to 282,745.62, 390,194.28 and 155,421.18

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Solution

The fourth proportional to 282,745.62, 390,194.28 and 155,421.18 is: 214,484.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,745.62 : 390,194.28 = 155,421.18 : x
  2. Step 2: Convert to fraction form
    282,745.62/390,194.28 = 155,421.18/x
  3. Step 3: Cross multiply
    282,745.62x = 390,194.28 × 155,421.18
  4. Step 4: Simplify right side
    282,745.62x = 60,644,455,426.85
  5. Step 5: Solve for x
    x = 60,644,455,426.85/282,745.62
  6. Step 6: Final answer
    x = 214,484.16

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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.