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Finding the Fourth Proportional to 228,953.68, 315,988.34 and 127,001.80

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Solution

The fourth proportional to 228,953.68, 315,988.34 and 127,001.80 is: 175,280.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,953.68 : 315,988.34 = 127,001.80 : x
  2. Step 2: Convert to fraction form
    228,953.68/315,988.34 = 127,001.80/x
  3. Step 3: Cross multiply
    228,953.68x = 315,988.34 × 127,001.80
  4. Step 4: Simplify right side
    228,953.68x = 40,131,087,959.01
  5. Step 5: Solve for x
    x = 40,131,087,959.01/228,953.68
  6. Step 6: Final answer
    x = 175,280.38

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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.