Home / 389,718.10-584,455.65-153,133.30

Finding the Fourth Proportional to 389,718.10, 584,455.65 and 153,133.30

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Solution

The fourth proportional to 389,718.10, 584,455.65 and 153,133.30 is: 229,652.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,718.10 : 584,455.65 = 153,133.30 : x
  2. Step 2: Convert to fraction form
    389,718.10/584,455.65 = 153,133.30/x
  3. Step 3: Cross multiply
    389,718.10x = 584,455.65 × 153,133.30
  4. Step 4: Simplify right side
    389,718.10x = 89,499,622,388.15
  5. Step 5: Solve for x
    x = 89,499,622,388.15/389,718.10
  6. Step 6: Final answer
    x = 229,652.21

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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.