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Finding the Fourth Proportional to 225,025.78, 310,534.78 and 124,423.78

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Solution

The fourth proportional to 225,025.78, 310,534.78 and 124,423.78 is: 171,704.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,025.78 : 310,534.78 = 124,423.78 : x
  2. Step 2: Convert to fraction form
    225,025.78/310,534.78 = 124,423.78/x
  3. Step 3: Cross multiply
    225,025.78x = 310,534.78 × 124,423.78
  4. Step 4: Simplify right side
    225,025.78x = 38,637,911,149.07
  5. Step 5: Solve for x
    x = 38,637,911,149.07/225,025.78
  6. Step 6: Final answer
    x = 171,704.38

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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.