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Finding the Fourth Proportional to 230,275.17, 317,774.95 and 128,300.22

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Solution

The fourth proportional to 230,275.17, 317,774.95 and 128,300.22 is: 177,051.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,275.17 : 317,774.95 = 128,300.22 : x
  2. Step 2: Convert to fraction form
    230,275.17/317,774.95 = 128,300.22/x
  3. Step 3: Cross multiply
    230,275.17x = 317,774.95 × 128,300.22
  4. Step 4: Simplify right side
    230,275.17x = 40,770,595,674.74
  5. Step 5: Solve for x
    x = 40,770,595,674.74/230,275.17
  6. Step 6: Final answer
    x = 177,051.64

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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.