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Finding the Fourth Proportional to 341,609.20, 512,413.80 and 315,948.40

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Solution

The fourth proportional to 341,609.20, 512,413.80 and 315,948.40 is: 473,922.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,609.20 : 512,413.80 = 315,948.40 : x
  2. Step 2: Convert to fraction form
    341,609.20/512,413.80 = 315,948.40/x
  3. Step 3: Cross multiply
    341,609.20x = 512,413.80 × 315,948.40
  4. Step 4: Simplify right side
    341,609.20x = 161,896,320,247.92
  5. Step 5: Solve for x
    x = 161,896,320,247.92/341,609.20
  6. Step 6: Final answer
    x = 473,922.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.