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Finding the Fourth Proportional to 418,503.61, 577,539.06 and 227,521.10

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Solution

The fourth proportional to 418,503.61, 577,539.06 and 227,521.10 is: 313,981.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,503.61 : 577,539.06 = 227,521.10 : x
  2. Step 2: Convert to fraction form
    418,503.61/577,539.06 = 227,521.10/x
  3. Step 3: Cross multiply
    418,503.61x = 577,539.06 × 227,521.10
  4. Step 4: Simplify right side
    418,503.61x = 131,402,324,094.62
  5. Step 5: Solve for x
    x = 131,402,324,094.62/418,503.61
  6. Step 6: Final answer
    x = 313,981.34

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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.