Home / 282,820.92-390,291.66-155,503.32

Finding the Fourth Proportional to 282,820.92, 390,291.66 and 155,503.32

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Solution

The fourth proportional to 282,820.92, 390,291.66 and 155,503.32 is: 214,593.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,820.92 : 390,291.66 = 155,503.32 : x
  2. Step 2: Convert to fraction form
    282,820.92/390,291.66 = 155,503.32/x
  3. Step 3: Cross multiply
    282,820.92x = 390,291.66 × 155,503.32
  4. Step 4: Simplify right side
    282,820.92x = 60,691,648,898.31
  5. Step 5: Solve for x
    x = 60,691,648,898.31/282,820.92
  6. Step 6: Final answer
    x = 214,593.92

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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.