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Finding the Fourth Proportional to 487,360.80, 730,911.60 and 150,400.80

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Solution

The fourth proportional to 487,360.80, 730,911.60 and 150,400.80 is: 225,561.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,360.80 : 730,911.60 = 150,400.80 : x
  2. Step 2: Convert to fraction form
    487,360.80/730,911.60 = 150,400.80/x
  3. Step 3: Cross multiply
    487,360.80x = 730,911.60 × 150,400.80
  4. Step 4: Simplify right side
    487,360.80x = 109,929,689,369.28
  5. Step 5: Solve for x
    x = 109,929,689,369.28/487,360.80
  6. Step 6: Final answer
    x = 225,561.21

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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.