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Finding the Fourth Proportional to 477,252.40, 715,878.60 and 210,875.80

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Solution

The fourth proportional to 477,252.40, 715,878.60 and 210,875.80 is: 316,313.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,252.40 : 715,878.60 = 210,875.80 : x
  2. Step 2: Convert to fraction form
    477,252.40/715,878.60 = 210,875.80/x
  3. Step 3: Cross multiply
    477,252.40x = 715,878.60 × 210,875.80
  4. Step 4: Simplify right side
    477,252.40x = 150,961,472,477.88
  5. Step 5: Solve for x
    x = 150,961,472,477.88/477,252.40
  6. Step 6: Final answer
    x = 316,313.70

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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.