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Finding the Fourth Proportional to 290,347.71, 400,642.68 and 169,461.27

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Solution

The fourth proportional to 290,347.71, 400,642.68 and 169,461.27 is: 233,834.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,347.71 : 400,642.68 = 169,461.27 : x
  2. Step 2: Convert to fraction form
    290,347.71/400,642.68 = 169,461.27/x
  3. Step 3: Cross multiply
    290,347.71x = 400,642.68 × 169,461.27
  4. Step 4: Simplify right side
    290,347.71x = 67,893,417,369.00
  5. Step 5: Solve for x
    x = 67,893,417,369.00/290,347.71
  6. Step 6: Final answer
    x = 233,834.86

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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.