Home / 385,019.08-577,345.98-225,141.40

Finding the Fourth Proportional to 385,019.08, 577,345.98 and 225,141.40

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Solution

The fourth proportional to 385,019.08, 577,345.98 and 225,141.40 is: 337,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,019.08 : 577,345.98 = 225,141.40 : x
  2. Step 2: Convert to fraction form
    385,019.08/577,345.98 = 225,141.40/x
  3. Step 3: Cross multiply
    385,019.08x = 577,345.98 × 225,141.40
  4. Step 4: Simplify right side
    385,019.08x = 129,984,482,221.57
  5. Step 5: Solve for x
    x = 129,984,482,221.57/385,019.08
  6. Step 6: Final answer
    x = 337,605.30

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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.