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Finding the Fourth Proportional to 225,028.72, 310,393.28 and 144,328.42

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Solution

The fourth proportional to 225,028.72, 310,393.28 and 144,328.42 is: 199,079.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,028.72 : 310,393.28 = 144,328.42 : x
  2. Step 2: Convert to fraction form
    225,028.72/310,393.28 = 144,328.42/x
  3. Step 3: Cross multiply
    225,028.72x = 310,393.28 × 144,328.42
  4. Step 4: Simplify right side
    225,028.72x = 44,798,571,681.02
  5. Step 5: Solve for x
    x = 44,798,571,681.02/225,028.72
  6. Step 6: Final answer
    x = 199,079.35

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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.