Home / 197,288.28-272,348.39-115,605.16

Finding the Fourth Proportional to 197,288.28, 272,348.39 and 115,605.16

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Solution

The fourth proportional to 197,288.28, 272,348.39 and 115,605.16 is: 159,588.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,288.28 : 272,348.39 = 115,605.16 : x
  2. Step 2: Convert to fraction form
    197,288.28/272,348.39 = 115,605.16/x
  3. Step 3: Cross multiply
    197,288.28x = 272,348.39 × 115,605.16
  4. Step 4: Simplify right side
    197,288.28x = 31,484,878,809.83
  5. Step 5: Solve for x
    x = 31,484,878,809.83/197,288.28
  6. Step 6: Final answer
    x = 159,588.19

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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.