Home / 152,431.20-228,646.80-47,282.40

Finding the Fourth Proportional to 152,431.20, 228,646.80 and 47,282.40

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Solution

The fourth proportional to 152,431.20, 228,646.80 and 47,282.40 is: 70,923.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,431.20 : 228,646.80 = 47,282.40 : x
  2. Step 2: Convert to fraction form
    152,431.20/228,646.80 = 47,282.40/x
  3. Step 3: Cross multiply
    152,431.20x = 228,646.80 × 47,282.40
  4. Step 4: Simplify right side
    152,431.20x = 10,810,969,456.32
  5. Step 5: Solve for x
    x = 10,810,969,456.32/152,431.20
  6. Step 6: Final answer
    x = 70,923.60

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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.