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Finding the Fourth Proportional to 499,051.40, 748,686.45 and 162,034.70

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Solution

The fourth proportional to 499,051.40, 748,686.45 and 162,034.70 is: 243,087.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,051.40 : 748,686.45 = 162,034.70 : x
  2. Step 2: Convert to fraction form
    499,051.40/748,686.45 = 162,034.70/x
  3. Step 3: Cross multiply
    499,051.40x = 748,686.45 × 162,034.70
  4. Step 4: Simplify right side
    499,051.40x = 121,313,184,319.82
  5. Step 5: Solve for x
    x = 121,313,184,319.82/499,051.40
  6. Step 6: Final answer
    x = 243,087.55

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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.