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Finding the Fourth Proportional to 282,901.71, 390,396.96 and 168,180.57

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Solution

The fourth proportional to 282,901.71, 390,396.96 and 168,180.57 is: 232,084.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,901.71 : 390,396.96 = 168,180.57 : x
  2. Step 2: Convert to fraction form
    282,901.71/390,396.96 = 168,180.57/x
  3. Step 3: Cross multiply
    282,901.71x = 390,396.96 × 168,180.57
  4. Step 4: Simplify right side
    282,901.71x = 65,657,183,259.07
  5. Step 5: Solve for x
    x = 65,657,183,259.07/282,901.71
  6. Step 6: Final answer
    x = 232,084.79

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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.