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Finding the Fourth Proportional to 282,776.40, 390,225.60 and 169,635.60

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Solution

The fourth proportional to 282,776.40, 390,225.60 and 169,635.60 is: 234,093.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,776.40 : 390,225.60 = 169,635.60 : x
  2. Step 2: Convert to fraction form
    282,776.40/390,225.60 = 169,635.60/x
  3. Step 3: Cross multiply
    282,776.40x = 390,225.60 × 169,635.60
  4. Step 4: Simplify right side
    282,776.40x = 66,196,153,791.36
  5. Step 5: Solve for x
    x = 66,196,153,791.36/282,776.40
  6. Step 6: Final answer
    x = 234,093.63

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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.