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Finding the Fourth Proportional to 331,458.48, 457,413.48 and 180,565.20

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Solution

The fourth proportional to 331,458.48, 457,413.48 and 180,565.20 is: 249,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,458.48 : 457,413.48 = 180,565.20 : x
  2. Step 2: Convert to fraction form
    331,458.48/457,413.48 = 180,565.20/x
  3. Step 3: Cross multiply
    331,458.48x = 457,413.48 × 180,565.20
  4. Step 4: Simplify right side
    331,458.48x = 82,592,956,498.90
  5. Step 5: Solve for x
    x = 82,592,956,498.90/331,458.48
  6. Step 6: Final answer
    x = 249,180.40

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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.