Home / 246,038.40-339,536.41-137,139.72

Finding the Fourth Proportional to 246,038.40, 339,536.41 and 137,139.72

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Solution

The fourth proportional to 246,038.40, 339,536.41 and 137,139.72 is: 189,254.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,038.40 : 339,536.41 = 137,139.72 : x
  2. Step 2: Convert to fraction form
    246,038.40/339,536.41 = 137,139.72/x
  3. Step 3: Cross multiply
    246,038.40x = 339,536.41 × 137,139.72
  4. Step 4: Simplify right side
    246,038.40x = 46,563,928,333.71
  5. Step 5: Solve for x
    x = 46,563,928,333.71/246,038.40
  6. Step 6: Final answer
    x = 189,254.72

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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.