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Finding the Fourth Proportional to 434,476.10, 651,714.15 and 210,008.90

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Solution

The fourth proportional to 434,476.10, 651,714.15 and 210,008.90 is: 315,013.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,476.10 : 651,714.15 = 210,008.90 : x
  2. Step 2: Convert to fraction form
    434,476.10/651,714.15 = 210,008.90/x
  3. Step 3: Cross multiply
    434,476.10x = 651,714.15 × 210,008.90
  4. Step 4: Simplify right side
    434,476.10x = 136,865,771,755.94
  5. Step 5: Solve for x
    x = 136,865,771,755.94/434,476.10
  6. Step 6: Final answer
    x = 315,013.35

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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.