Home / 456,839.46-685,305.09-157,280.40

Finding the Fourth Proportional to 456,839.46, 685,305.09 and 157,280.40

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Solution

The fourth proportional to 456,839.46, 685,305.09 and 157,280.40 is: 235,936.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,839.46 : 685,305.09 = 157,280.40 : x
  2. Step 2: Convert to fraction form
    456,839.46/685,305.09 = 157,280.40/x
  3. Step 3: Cross multiply
    456,839.46x = 685,305.09 × 157,280.40
  4. Step 4: Simplify right side
    456,839.46x = 107,785,058,677.24
  5. Step 5: Solve for x
    x = 107,785,058,677.24/456,839.46
  6. Step 6: Final answer
    x = 235,936.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.