Home / 229,934.40-317,319.84-129,332.40

Finding the Fourth Proportional to 229,934.40, 317,319.84 and 129,332.40

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Solution

The fourth proportional to 229,934.40, 317,319.84 and 129,332.40 is: 178,484.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,934.40 : 317,319.84 = 129,332.40 : x
  2. Step 2: Convert to fraction form
    229,934.40/317,319.84 = 129,332.40/x
  3. Step 3: Cross multiply
    229,934.40x = 317,319.84 × 129,332.40
  4. Step 4: Simplify right side
    229,934.40x = 41,039,736,474.82
  5. Step 5: Solve for x
    x = 41,039,736,474.82/229,934.40
  6. Step 6: Final answer
    x = 178,484.54

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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.