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Finding the Fourth Proportional to 610,116.63, 915,194.21 and 210,780.15

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Solution

The fourth proportional to 610,116.63, 915,194.21 and 210,780.15 is: 316,176.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,116.63 : 915,194.21 = 210,780.15 : x
  2. Step 2: Convert to fraction form
    610,116.63/915,194.21 = 210,780.15/x
  3. Step 3: Cross multiply
    610,116.63x = 915,194.21 × 210,780.15
  4. Step 4: Simplify right side
    610,116.63x = 192,904,771,809.03
  5. Step 5: Solve for x
    x = 192,904,771,809.03/610,116.63
  6. Step 6: Final answer
    x = 316,176.88

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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.