Home / 282,672.64-390,083.76-155,345.52

Finding the Fourth Proportional to 282,672.64, 390,083.76 and 155,345.52

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Solution

The fourth proportional to 282,672.64, 390,083.76 and 155,345.52 is: 214,374.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,672.64 : 390,083.76 = 155,345.52 : x
  2. Step 2: Convert to fraction form
    282,672.64/390,083.76 = 155,345.52/x
  3. Step 3: Cross multiply
    282,672.64x = 390,083.76 × 155,345.52
  4. Step 4: Simplify right side
    282,672.64x = 60,597,764,540.76
  5. Step 5: Solve for x
    x = 60,597,764,540.76/282,672.64
  6. Step 6: Final answer
    x = 214,374.35

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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.