Home / 389,490.90-584,564.40-153,003.30

Finding the Fourth Proportional to 389,490.90, 584,564.40 and 153,003.30

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Solution

The fourth proportional to 389,490.90, 584,564.40 and 153,003.30 is: 229,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,490.90 : 584,564.40 = 153,003.30 : x
  2. Step 2: Convert to fraction form
    389,490.90/584,564.40 = 153,003.30/x
  3. Step 3: Cross multiply
    389,490.90x = 584,564.40 × 153,003.30
  4. Step 4: Simplify right side
    389,490.90x = 89,440,282,262.52
  5. Step 5: Solve for x
    x = 89,440,282,262.52/389,490.90
  6. Step 6: Final answer
    x = 229,633.82

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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.