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Finding the Fourth Proportional to 374,984.88, 562,552.56 and 138,328.80

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Solution

The fourth proportional to 374,984.88, 562,552.56 and 138,328.80 is: 207,520.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,984.88 : 562,552.56 = 138,328.80 : x
  2. Step 2: Convert to fraction form
    374,984.88/562,552.56 = 138,328.80/x
  3. Step 3: Cross multiply
    374,984.88x = 562,552.56 × 138,328.80
  4. Step 4: Simplify right side
    374,984.88x = 77,817,220,561.73
  5. Step 5: Solve for x
    x = 77,817,220,561.73/374,984.88
  6. Step 6: Final answer
    x = 207,520.96

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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.