Home / 230,188.28-317,637.12-128,210.32

Finding the Fourth Proportional to 230,188.28, 317,637.12 and 128,210.32

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Solution

The fourth proportional to 230,188.28, 317,637.12 and 128,210.32 is: 176,917.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,188.28 : 317,637.12 = 128,210.32 : x
  2. Step 2: Convert to fraction form
    230,188.28/317,637.12 = 128,210.32/x
  3. Step 3: Cross multiply
    230,188.28x = 317,637.12 × 128,210.32
  4. Step 4: Simplify right side
    230,188.28x = 40,724,356,799.08
  5. Step 5: Solve for x
    x = 40,724,356,799.08/230,188.28
  6. Step 6: Final answer
    x = 176,917.59

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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.