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Finding the Fourth Proportional to 282,765.88, 390,061.20 and 179,210.64

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Solution

The fourth proportional to 282,765.88, 390,061.20 and 179,210.64 is: 247,211.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,765.88 : 390,061.20 = 179,210.64 : x
  2. Step 2: Convert to fraction form
    282,765.88/390,061.20 = 179,210.64/x
  3. Step 3: Cross multiply
    282,765.88x = 390,061.20 × 179,210.64
  4. Step 4: Simplify right side
    282,765.88x = 69,903,117,291.17
  5. Step 5: Solve for x
    x = 69,903,117,291.17/282,765.88
  6. Step 6: Final answer
    x = 247,211.99

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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.