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Finding the Fourth Proportional to 145,657.79, 218,512.31 and 60,268.40

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Solution

The fourth proportional to 145,657.79, 218,512.31 and 60,268.40 is: 90,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,657.79 : 218,512.31 = 60,268.40 : x
  2. Step 2: Convert to fraction form
    145,657.79/218,512.31 = 60,268.40/x
  3. Step 3: Cross multiply
    145,657.79x = 218,512.31 × 60,268.40
  4. Step 4: Simplify right side
    145,657.79x = 13,169,387,304.00
  5. Step 5: Solve for x
    x = 13,169,387,304.00/145,657.79
  6. Step 6: Final answer
    x = 90,413.20

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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.