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Finding the Fourth Proportional to 290,510.03, 400,904.12 and 161,460.57

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Solution

The fourth proportional to 290,510.03, 400,904.12 and 161,460.57 is: 222,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,510.03 : 400,904.12 = 161,460.57 : x
  2. Step 2: Convert to fraction form
    290,510.03/400,904.12 = 161,460.57/x
  3. Step 3: Cross multiply
    290,510.03x = 400,904.12 × 161,460.57
  4. Step 4: Simplify right side
    290,510.03x = 64,730,206,923.25
  5. Step 5: Solve for x
    x = 64,730,206,923.25/290,510.03
  6. Step 6: Final answer
    x = 222,815.74

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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.