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Finding the Fourth Proportional to 507,368.38, 700,129.83 and 281,009.02

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Solution

The fourth proportional to 507,368.38, 700,129.83 and 281,009.02 is: 387,771.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,368.38 : 700,129.83 = 281,009.02 : x
  2. Step 2: Convert to fraction form
    507,368.38/700,129.83 = 281,009.02/x
  3. Step 3: Cross multiply
    507,368.38x = 700,129.83 × 281,009.02
  4. Step 4: Simplify right side
    507,368.38x = 196,742,797,401.07
  5. Step 5: Solve for x
    x = 196,742,797,401.07/507,368.38
  6. Step 6: Final answer
    x = 387,771.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.