Home / 230,023.49-317,430.14-128,047.32

Finding the Fourth Proportional to 230,023.49, 317,430.14 and 128,047.32

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Solution

The fourth proportional to 230,023.49, 317,430.14 and 128,047.32 is: 176,704.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,023.49 : 317,430.14 = 128,047.32 : x
  2. Step 2: Convert to fraction form
    230,023.49/317,430.14 = 128,047.32/x
  3. Step 3: Cross multiply
    230,023.49x = 317,430.14 × 128,047.32
  4. Step 4: Simplify right side
    230,023.49x = 40,646,078,073.99
  5. Step 5: Solve for x
    x = 40,646,078,073.99/230,023.49
  6. Step 6: Final answer
    x = 176,704.04

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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.