Home / 209,384.40-313,971.48-96,967.92

Finding the Fourth Proportional to 209,384.40, 313,971.48 and 96,967.92

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Solution

The fourth proportional to 209,384.40, 313,971.48 and 96,967.92 is: 145,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,384.40 : 313,971.48 = 96,967.92 : x
  2. Step 2: Convert to fraction form
    209,384.40/313,971.48 = 96,967.92/x
  3. Step 3: Cross multiply
    209,384.40x = 313,971.48 × 96,967.92
  4. Step 4: Simplify right side
    209,384.40x = 30,445,161,354.92
  5. Step 5: Solve for x
    x = 30,445,161,354.92/209,384.40
  6. Step 6: Final answer
    x = 145,403.20

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1.5x scale

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.