Home / 385,017.48-577,565.82-145,333.27

Finding the Fourth Proportional to 385,017.48, 577,565.82 and 145,333.27

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Solution

The fourth proportional to 385,017.48, 577,565.82 and 145,333.27 is: 218,014.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,017.48 : 577,565.82 = 145,333.27 : x
  2. Step 2: Convert to fraction form
    385,017.48/577,565.82 = 145,333.27/x
  3. Step 3: Cross multiply
    385,017.48x = 577,565.82 × 145,333.27
  4. Step 4: Simplify right side
    385,017.48x = 83,939,529,260.83
  5. Step 5: Solve for x
    x = 83,939,529,260.83/385,017.48
  6. Step 6: Final answer
    x = 218,014.85

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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.