Home / 216,088.40-324,132.60-137,259.20

Finding the Fourth Proportional to 216,088.40, 324,132.60 and 137,259.20

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Solution

The fourth proportional to 216,088.40, 324,132.60 and 137,259.20 is: 205,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,088.40 : 324,132.60 = 137,259.20 : x
  2. Step 2: Convert to fraction form
    216,088.40/324,132.60 = 137,259.20/x
  3. Step 3: Cross multiply
    216,088.40x = 324,132.60 × 137,259.20
  4. Step 4: Simplify right side
    216,088.40x = 44,490,181,369.92
  5. Step 5: Solve for x
    x = 44,490,181,369.92/216,088.40
  6. Step 6: Final answer
    x = 205,888.80

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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.