Home / 305,985.10-458,649.50-147,996.22

Finding the Fourth Proportional to 305,985.10, 458,649.50 and 147,996.22

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Solution

The fourth proportional to 305,985.10, 458,649.50 and 147,996.22 is: 221,835.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,985.10 : 458,649.50 = 147,996.22 : x
  2. Step 2: Convert to fraction form
    305,985.10/458,649.50 = 147,996.22/x
  3. Step 3: Cross multiply
    305,985.10x = 458,649.50 × 147,996.22
  4. Step 4: Simplify right side
    305,985.10x = 67,878,390,011.64
  5. Step 5: Solve for x
    x = 67,878,390,011.64/305,985.10
  6. Step 6: Final answer
    x = 221,835.61

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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.