Home / 309,038.90-463,443.15-122,011.70

Finding the Fourth Proportional to 309,038.90, 463,443.15 and 122,011.70

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Solution

The fourth proportional to 309,038.90, 463,443.15 and 122,011.70 is: 182,972.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,038.90 : 463,443.15 = 122,011.70 : x
  2. Step 2: Convert to fraction form
    309,038.90/463,443.15 = 122,011.70/x
  3. Step 3: Cross multiply
    309,038.90x = 463,443.15 × 122,011.70
  4. Step 4: Simplify right side
    309,038.90x = 56,545,486,584.86
  5. Step 5: Solve for x
    x = 56,545,486,584.86/309,038.90
  6. Step 6: Final answer
    x = 182,972.07

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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.