Home / 314,618.07-434,160.66-192,315.21

Finding the Fourth Proportional to 314,618.07, 434,160.66 and 192,315.21

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Solution

The fourth proportional to 314,618.07, 434,160.66 and 192,315.21 is: 265,387.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,618.07 : 434,160.66 = 192,315.21 : x
  2. Step 2: Convert to fraction form
    314,618.07/434,160.66 = 192,315.21/x
  3. Step 3: Cross multiply
    314,618.07x = 434,160.66 × 192,315.21
  4. Step 4: Simplify right side
    314,618.07x = 83,495,700,036.87
  5. Step 5: Solve for x
    x = 83,495,700,036.87/314,618.07
  6. Step 6: Final answer
    x = 265,387.49

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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.