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Finding the Fourth Proportional to 470,437.20, 705,655.80 and 154,853.10

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Solution

The fourth proportional to 470,437.20, 705,655.80 and 154,853.10 is: 232,279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,437.20 : 705,655.80 = 154,853.10 : x
  2. Step 2: Convert to fraction form
    470,437.20/705,655.80 = 154,853.10/x
  3. Step 3: Cross multiply
    470,437.20x = 705,655.80 × 154,853.10
  4. Step 4: Simplify right side
    470,437.20x = 109,272,988,162.98
  5. Step 5: Solve for x
    x = 109,272,988,162.98/470,437.20
  6. Step 6: Final answer
    x = 232,279.65

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Similar ratio
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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.