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Finding the Fourth Proportional to 576,907.90, 865,102.65 and 221,803.90

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Solution

The fourth proportional to 576,907.90, 865,102.65 and 221,803.90 is: 332,606.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,907.90 : 865,102.65 = 221,803.90 : x
  2. Step 2: Convert to fraction form
    576,907.90/865,102.65 = 221,803.90/x
  3. Step 3: Cross multiply
    576,907.90x = 865,102.65 × 221,803.90
  4. Step 4: Simplify right side
    576,907.90x = 191,883,141,670.34
  5. Step 5: Solve for x
    x = 191,883,141,670.34/576,907.90
  6. Step 6: Final answer
    x = 332,606.20

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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.