Home / 230,047.20-317,457.36-129,425.76

Finding the Fourth Proportional to 230,047.20, 317,457.36 and 129,425.76

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Solution

The fourth proportional to 230,047.20, 317,457.36 and 129,425.76 is: 178,603.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,047.20 : 317,457.36 = 129,425.76 : x
  2. Step 2: Convert to fraction form
    230,047.20/317,457.36 = 129,425.76/x
  3. Step 3: Cross multiply
    230,047.20x = 317,457.36 × 129,425.76
  4. Step 4: Simplify right side
    230,047.20x = 41,087,160,085.59
  5. Step 5: Solve for x
    x = 41,087,160,085.59/230,047.20
  6. Step 6: Final answer
    x = 178,603.17

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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.