Home / 385,018.08-577,344.48-225,140.40

Finding the Fourth Proportional to 385,018.08, 577,344.48 and 225,140.40

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Solution

The fourth proportional to 385,018.08, 577,344.48 and 225,140.40 is: 337,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,018.08 : 577,344.48 = 225,140.40 : x
  2. Step 2: Convert to fraction form
    385,018.08/577,344.48 = 225,140.40/x
  3. Step 3: Cross multiply
    385,018.08x = 577,344.48 × 225,140.40
  4. Step 4: Simplify right side
    385,018.08x = 129,983,567,164.99
  5. Step 5: Solve for x
    x = 129,983,567,164.99/385,018.08
  6. Step 6: Final answer
    x = 337,603.80

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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.