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Finding the Fourth Proportional to 418,443.30, 577,444.95 and 227,461.50

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Solution

The fourth proportional to 418,443.30, 577,444.95 and 227,461.50 is: 313,893.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,443.30 : 577,444.95 = 227,461.50 : x
  2. Step 2: Convert to fraction form
    418,443.30/577,444.95 = 227,461.50/x
  3. Step 3: Cross multiply
    418,443.30x = 577,444.95 × 227,461.50
  4. Step 4: Simplify right side
    418,443.30x = 131,346,494,494.43
  5. Step 5: Solve for x
    x = 131,346,494,494.43/418,443.30
  6. Step 6: Final answer
    x = 313,893.17

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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.