Home / 221,368.04-305,478.78-130,753.34

Finding the Fourth Proportional to 221,368.04, 305,478.78 and 130,753.34

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Solution

The fourth proportional to 221,368.04, 305,478.78 and 130,753.34 is: 180,434.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,368.04 : 305,478.78 = 130,753.34 : x
  2. Step 2: Convert to fraction form
    221,368.04/305,478.78 = 130,753.34/x
  3. Step 3: Cross multiply
    221,368.04x = 305,478.78 × 130,753.34
  4. Step 4: Simplify right side
    221,368.04x = 39,942,370,784.13
  5. Step 5: Solve for x
    x = 39,942,370,784.13/221,368.04
  6. Step 6: Final answer
    x = 180,434.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.