Home / 289,455.60-434,060.38-118,559.50

Finding the Fourth Proportional to 289,455.60, 434,060.38 and 118,559.50

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Solution

The fourth proportional to 289,455.60, 434,060.38 and 118,559.50 is: 177,788.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,455.60 : 434,060.38 = 118,559.50 : x
  2. Step 2: Convert to fraction form
    289,455.60/434,060.38 = 118,559.50/x
  3. Step 3: Cross multiply
    289,455.60x = 434,060.38 × 118,559.50
  4. Step 4: Simplify right side
    289,455.60x = 51,461,980,685.66
  5. Step 5: Solve for x
    x = 51,461,980,685.66/289,455.60
  6. Step 6: Final answer
    x = 177,788.86

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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.