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Finding the Fourth Proportional to 310,727.20, 465,860.40 and 133,088.80

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Solution

The fourth proportional to 310,727.20, 465,860.40 and 133,088.80 is: 199,534.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,727.20 : 465,860.40 = 133,088.80 : x
  2. Step 2: Convert to fraction form
    310,727.20/465,860.40 = 133,088.80/x
  3. Step 3: Cross multiply
    310,727.20x = 465,860.40 × 133,088.80
  4. Step 4: Simplify right side
    310,727.20x = 62,000,801,603.52
  5. Step 5: Solve for x
    x = 62,000,801,603.52/310,727.20
  6. Step 6: Final answer
    x = 199,534.52

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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.