Home / 269,203.02-403,811.01-128,807.34

Finding the Fourth Proportional to 269,203.02, 403,811.01 and 128,807.34

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Solution

The fourth proportional to 269,203.02, 403,811.01 and 128,807.34 is: 193,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,203.02 : 403,811.01 = 128,807.34 : x
  2. Step 2: Convert to fraction form
    269,203.02/403,811.01 = 128,807.34/x
  3. Step 3: Cross multiply
    269,203.02x = 403,811.01 × 128,807.34
  4. Step 4: Simplify right side
    269,203.02x = 52,013,822,060.81
  5. Step 5: Solve for x
    x = 52,013,822,060.81/269,203.02
  6. Step 6: Final answer
    x = 193,214.11

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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.