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Finding the Fourth Proportional to 438,739, 658,108.59 and 158,256.22

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Solution

The fourth proportional to 438,739, 658,108.59 and 158,256.22 is: 237,384.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,739 : 658,108.59 = 158,256.22 : x
  2. Step 2: Convert to fraction form
    438,739/658,108.59 = 158,256.22/x
  3. Step 3: Cross multiply
    438,739x = 658,108.59 × 158,256.22
  4. Step 4: Simplify right side
    438,739x = 104,149,777,802.93
  5. Step 5: Solve for x
    x = 104,149,777,802.93/438,739
  6. Step 6: Final answer
    x = 237,384.36

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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.