Home / 312,313.29-430,995.78-169,076.40

Finding the Fourth Proportional to 312,313.29, 430,995.78 and 169,076.40

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Solution

The fourth proportional to 312,313.29, 430,995.78 and 169,076.40 is: 233,327.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,313.29 : 430,995.78 = 169,076.40 : x
  2. Step 2: Convert to fraction form
    312,313.29/430,995.78 = 169,076.40/x
  3. Step 3: Cross multiply
    312,313.29x = 430,995.78 × 169,076.40
  4. Step 4: Simplify right side
    312,313.29x = 72,871,214,897.59
  5. Step 5: Solve for x
    x = 72,871,214,897.59/312,313.29
  6. Step 6: Final answer
    x = 233,327.29

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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.