Home / 379,723.02-569,617.20-99,240

Finding the Fourth Proportional to 379,723.02, 569,617.20 and 99,240

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Solution

The fourth proportional to 379,723.02, 569,617.20 and 99,240 is: 148,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,723.02 : 569,617.20 = 99,240 : x
  2. Step 2: Convert to fraction form
    379,723.02/569,617.20 = 99,240/x
  3. Step 3: Cross multiply
    379,723.02x = 569,617.20 × 99,240
  4. Step 4: Simplify right side
    379,723.02x = 56,528,810,928.00
  5. Step 5: Solve for x
    x = 56,528,810,928.00/379,723.02
  6. Step 6: Final answer
    x = 148,868.54

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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.