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Finding the Fourth Proportional to 314,787.54, 434,406.84 and 171,547.62

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Solution

The fourth proportional to 314,787.54, 434,406.84 and 171,547.62 is: 236,735.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,787.54 : 434,406.84 = 171,547.62 : x
  2. Step 2: Convert to fraction form
    314,787.54/434,406.84 = 171,547.62/x
  3. Step 3: Cross multiply
    314,787.54x = 434,406.84 × 171,547.62
  4. Step 4: Simplify right side
    314,787.54x = 74,521,459,513.72
  5. Step 5: Solve for x
    x = 74,521,459,513.72/314,787.54
  6. Step 6: Final answer
    x = 236,735.73

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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.