Home / 387,945.81-535,284.96-226,769.68

Finding the Fourth Proportional to 387,945.81, 535,284.96 and 226,769.68

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Solution

The fourth proportional to 387,945.81, 535,284.96 and 226,769.68 is: 312,895.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,945.81 : 535,284.96 = 226,769.68 : x
  2. Step 2: Convert to fraction form
    387,945.81/535,284.96 = 226,769.68/x
  3. Step 3: Cross multiply
    387,945.81x = 535,284.96 × 226,769.68
  4. Step 4: Simplify right side
    387,945.81x = 121,386,399,088.01
  5. Step 5: Solve for x
    x = 121,386,399,088.01/387,945.81
  6. Step 6: Final answer
    x = 312,895.24

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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.