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Finding the Fourth Proportional to 487,369.63, 730,786.81 and 150,316.75

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Solution

The fourth proportional to 487,369.63, 730,786.81 and 150,316.75 is: 225,392.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,369.63 : 730,786.81 = 150,316.75 : x
  2. Step 2: Convert to fraction form
    487,369.63/730,786.81 = 150,316.75/x
  3. Step 3: Cross multiply
    487,369.63x = 730,786.81 × 150,316.75
  4. Step 4: Simplify right side
    487,369.63x = 109,849,497,470.48
  5. Step 5: Solve for x
    x = 109,849,497,470.48/487,369.63
  6. Step 6: Final answer
    x = 225,392.58

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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.