Home / 272,031.40-408,047.10-172,304.20

Finding the Fourth Proportional to 272,031.40, 408,047.10 and 172,304.20

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Solution

The fourth proportional to 272,031.40, 408,047.10 and 172,304.20 is: 258,456.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,031.40 : 408,047.10 = 172,304.20 : x
  2. Step 2: Convert to fraction form
    272,031.40/408,047.10 = 172,304.20/x
  3. Step 3: Cross multiply
    272,031.40x = 408,047.10 × 172,304.20
  4. Step 4: Simplify right side
    272,031.40x = 70,308,229,127.82
  5. Step 5: Solve for x
    x = 70,308,229,127.82/272,031.40
  6. Step 6: Final answer
    x = 258,456.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.