Home / 289,598.24-434,416.80-79,238.00

Finding the Fourth Proportional to 289,598.24, 434,416.80 and 79,238.00

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Solution

The fourth proportional to 289,598.24, 434,416.80 and 79,238.00 is: 118,862.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,598.24 : 434,416.80 = 79,238.00 : x
  2. Step 2: Convert to fraction form
    289,598.24/434,416.80 = 79,238.00/x
  3. Step 3: Cross multiply
    289,598.24x = 434,416.80 × 79,238.00
  4. Step 4: Simplify right side
    289,598.24x = 34,422,319,781.58
  5. Step 5: Solve for x
    x = 34,422,319,781.58/289,598.24
  6. Step 6: Final answer
    x = 118,862.32

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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.