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Finding the Fourth Proportional to 272,393.80, 375,800.28 and 168,980.20

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Solution

The fourth proportional to 272,393.80, 375,800.28 and 168,980.20 is: 233,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,393.80 : 375,800.28 = 168,980.20 : x
  2. Step 2: Convert to fraction form
    272,393.80/375,800.28 = 168,980.20/x
  3. Step 3: Cross multiply
    272,393.80x = 375,800.28 × 168,980.20
  4. Step 4: Simplify right side
    272,393.80x = 63,502,806,474.46
  5. Step 5: Solve for x
    x = 63,502,806,474.46/272,393.80
  6. Step 6: Final answer
    x = 233,128.68

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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.