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Finding the Fourth Proportional to 260,580.47, 359,602.40 and 147,400.79

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Solution

The fourth proportional to 260,580.47, 359,602.40 and 147,400.79 is: 203,413.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,580.47 : 359,602.40 = 147,400.79 : x
  2. Step 2: Convert to fraction form
    260,580.47/359,602.40 = 147,400.79/x
  3. Step 3: Cross multiply
    260,580.47x = 359,602.40 × 147,400.79
  4. Step 4: Simplify right side
    260,580.47x = 53,005,676,416.39
  5. Step 5: Solve for x
    x = 53,005,676,416.39/260,580.47
  6. Step 6: Final answer
    x = 203,413.85

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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.