Home / 310,316.80-465,475.20-152,512.60

Finding the Fourth Proportional to 310,316.80, 465,475.20 and 152,512.60

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Solution

The fourth proportional to 310,316.80, 465,475.20 and 152,512.60 is: 228,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,316.80 : 465,475.20 = 152,512.60 : x
  2. Step 2: Convert to fraction form
    310,316.80/465,475.20 = 152,512.60/x
  3. Step 3: Cross multiply
    310,316.80x = 465,475.20 × 152,512.60
  4. Step 4: Simplify right side
    310,316.80x = 70,990,832,987.52
  5. Step 5: Solve for x
    x = 70,990,832,987.52/310,316.80
  6. Step 6: Final answer
    x = 228,768.90

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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.