Home / 308,031.57-425,071.13-172,063.35

Finding the Fourth Proportional to 308,031.57, 425,071.13 and 172,063.35

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Solution

The fourth proportional to 308,031.57, 425,071.13 and 172,063.35 is: 237,440.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,031.57 : 425,071.13 = 172,063.35 : x
  2. Step 2: Convert to fraction form
    308,031.57/425,071.13 = 172,063.35/x
  3. Step 3: Cross multiply
    308,031.57x = 425,071.13 × 172,063.35
  4. Step 4: Simplify right side
    308,031.57x = 73,139,161,755.77
  5. Step 5: Solve for x
    x = 73,139,161,755.77/308,031.57
  6. Step 6: Final answer
    x = 237,440.47

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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.