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Finding the Fourth Proportional to 324,951.48, 487,473.66 and 100,330.38

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Solution

The fourth proportional to 324,951.48, 487,473.66 and 100,330.38 is: 150,509.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,951.48 : 487,473.66 = 100,330.38 : x
  2. Step 2: Convert to fraction form
    324,951.48/487,473.66 = 100,330.38/x
  3. Step 3: Cross multiply
    324,951.48x = 487,473.66 × 100,330.38
  4. Step 4: Simplify right side
    324,951.48x = 48,908,417,547.79
  5. Step 5: Solve for x
    x = 48,908,417,547.79/324,951.48
  6. Step 6: Final answer
    x = 150,509.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.