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Finding the Fourth Proportional to 217,389.60, 299,650.95 and 171,374.22

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Solution

The fourth proportional to 217,389.60, 299,650.95 and 171,374.22 is: 236,223.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,389.60 : 299,650.95 = 171,374.22 : x
  2. Step 2: Convert to fraction form
    217,389.60/299,650.95 = 171,374.22/x
  3. Step 3: Cross multiply
    217,389.60x = 299,650.95 × 171,374.22
  4. Step 4: Simplify right side
    217,389.60x = 51,352,447,828.51
  5. Step 5: Solve for x
    x = 51,352,447,828.51/217,389.60
  6. Step 6: Final answer
    x = 236,223.11

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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.