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Finding the Fourth Proportional to 228,726.96, 315,643.95 and 126,754.10

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Solution

The fourth proportional to 228,726.96, 315,643.95 and 126,754.10 is: 174,921.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,726.96 : 315,643.95 = 126,754.10 : x
  2. Step 2: Convert to fraction form
    228,726.96/315,643.95 = 126,754.10/x
  3. Step 3: Cross multiply
    228,726.96x = 315,643.95 × 126,754.10
  4. Step 4: Simplify right side
    228,726.96x = 40,009,164,168.92
  5. Step 5: Solve for x
    x = 40,009,164,168.92/228,726.96
  6. Step 6: Final answer
    x = 174,921.07

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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.