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Finding the Fourth Proportional to 290,134.77, 400,393.90 and 162,818.16

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Solution

The fourth proportional to 290,134.77, 400,393.90 and 162,818.16 is: 224,693.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,134.77 : 400,393.90 = 162,818.16 : x
  2. Step 2: Convert to fraction form
    290,134.77/400,393.90 = 162,818.16/x
  3. Step 3: Cross multiply
    290,134.77x = 400,393.90 × 162,818.16
  4. Step 4: Simplify right side
    290,134.77x = 65,191,398,073.22
  5. Step 5: Solve for x
    x = 65,191,398,073.22/290,134.77
  6. Step 6: Final answer
    x = 224,693.50

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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.