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Finding the Fourth Proportional to 418,497.45, 577,501.95 and 227,509.17

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Solution

The fourth proportional to 418,497.45, 577,501.95 and 227,509.17 is: 313,949.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,497.45 : 577,501.95 = 227,509.17 : x
  2. Step 2: Convert to fraction form
    418,497.45/577,501.95 = 227,509.17/x
  3. Step 3: Cross multiply
    418,497.45x = 577,501.95 × 227,509.17
  4. Step 4: Simplify right side
    418,497.45x = 131,386,989,317.88
  5. Step 5: Solve for x
    x = 131,386,989,317.88/418,497.45
  6. Step 6: Final answer
    x = 313,949.32

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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.