Home / 217,637.37-300,368.88-122,149.29

Finding the Fourth Proportional to 217,637.37, 300,368.88 and 122,149.29

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Solution

The fourth proportional to 217,637.37, 300,368.88 and 122,149.29 is: 168,582.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,637.37 : 300,368.88 = 122,149.29 : x
  2. Step 2: Convert to fraction form
    217,637.37/300,368.88 = 122,149.29/x
  3. Step 3: Cross multiply
    217,637.37x = 300,368.88 × 122,149.29
  4. Step 4: Simplify right side
    217,637.37x = 36,689,845,430.10
  5. Step 5: Solve for x
    x = 36,689,845,430.10/217,637.37
  6. Step 6: Final answer
    x = 168,582.47

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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.