Home / 221,057.10-304,817.04-149,312.52

Finding the Fourth Proportional to 221,057.10, 304,817.04 and 149,312.52

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Solution

The fourth proportional to 221,057.10, 304,817.04 and 149,312.52 is: 205,887.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,057.10 : 304,817.04 = 149,312.52 : x
  2. Step 2: Convert to fraction form
    221,057.10/304,817.04 = 149,312.52/x
  3. Step 3: Cross multiply
    221,057.10x = 304,817.04 × 149,312.52
  4. Step 4: Simplify right side
    221,057.10x = 45,513,000,381.34
  5. Step 5: Solve for x
    x = 45,513,000,381.34/221,057.10
  6. Step 6: Final answer
    x = 205,887.98

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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.