Home / 305,150.42-457,649.04-145,127.60

Finding the Fourth Proportional to 305,150.42, 457,649.04 and 145,127.60

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Solution

The fourth proportional to 305,150.42, 457,649.04 and 145,127.60 is: 217,654.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,150.42 : 457,649.04 = 145,127.60 : x
  2. Step 2: Convert to fraction form
    305,150.42/457,649.04 = 145,127.60/x
  3. Step 3: Cross multiply
    305,150.42x = 457,649.04 × 145,127.60
  4. Step 4: Simplify right side
    305,150.42x = 66,417,506,817.50
  5. Step 5: Solve for x
    x = 66,417,506,817.50/305,150.42
  6. Step 6: Final answer
    x = 217,654.97

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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.