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Finding the Fourth Proportional to 359,170.11, 495,975.15 and 342,155.25

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Solution

The fourth proportional to 359,170.11, 495,975.15 and 342,155.25 is: 472,479.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,170.11 : 495,975.15 = 342,155.25 : x
  2. Step 2: Convert to fraction form
    359,170.11/495,975.15 = 342,155.25/x
  3. Step 3: Cross multiply
    359,170.11x = 495,975.15 × 342,155.25
  4. Step 4: Simplify right side
    359,170.11x = 169,700,501,442.04
  5. Step 5: Solve for x
    x = 169,700,501,442.04/359,170.11
  6. Step 6: Final answer
    x = 472,479.47

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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.