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Finding the Fourth Proportional to 407,907.84, 562,909.44 and 229,056

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Solution

The fourth proportional to 407,907.84, 562,909.44 and 229,056 is: 316,095.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,907.84 : 562,909.44 = 229,056 : x
  2. Step 2: Convert to fraction form
    407,907.84/562,909.44 = 229,056/x
  3. Step 3: Cross multiply
    407,907.84x = 562,909.44 × 229,056
  4. Step 4: Simplify right side
    407,907.84x = 128,937,784,688.64
  5. Step 5: Solve for x
    x = 128,937,784,688.64/407,907.84
  6. Step 6: Final answer
    x = 316,095.38

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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.