Home / 282,873.20-390,348.72-155,548.89

Finding the Fourth Proportional to 282,873.20, 390,348.72 and 155,548.89

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Solution

The fourth proportional to 282,873.20, 390,348.72 and 155,548.89 is: 214,648.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,873.20 : 390,348.72 = 155,548.89 : x
  2. Step 2: Convert to fraction form
    282,873.20/390,348.72 = 155,548.89/x
  3. Step 3: Cross multiply
    282,873.20x = 390,348.72 × 155,548.89
  4. Step 4: Simplify right side
    282,873.20x = 60,718,310,108.92
  5. Step 5: Solve for x
    x = 60,718,310,108.92/282,873.20
  6. Step 6: Final answer
    x = 214,648.51

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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.