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Finding the Fourth Proportional to 477,254.90, 715,882.35 and 210,878.30

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Solution

The fourth proportional to 477,254.90, 715,882.35 and 210,878.30 is: 316,317.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,254.90 : 715,882.35 = 210,878.30 : x
  2. Step 2: Convert to fraction form
    477,254.90/715,882.35 = 210,878.30/x
  3. Step 3: Cross multiply
    477,254.90x = 715,882.35 × 210,878.30
  4. Step 4: Simplify right side
    477,254.90x = 150,964,052,968.01
  5. Step 5: Solve for x
    x = 150,964,052,968.01/477,254.90
  6. Step 6: Final answer
    x = 316,317.45

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Similar ratio
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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.