Home / 305,743.60-458,688.30-147,842.20

Finding the Fourth Proportional to 305,743.60, 458,688.30 and 147,842.20

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Solution

The fourth proportional to 305,743.60, 458,688.30 and 147,842.20 is: 221,798.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,743.60 : 458,688.30 = 147,842.20 : x
  2. Step 2: Convert to fraction form
    305,743.60/458,688.30 = 147,842.20/x
  3. Step 3: Cross multiply
    305,743.60x = 458,688.30 × 147,842.20
  4. Step 4: Simplify right side
    305,743.60x = 67,813,487,386.26
  5. Step 5: Solve for x
    x = 67,813,487,386.26/305,743.60
  6. Step 6: Final answer
    x = 221,798.55

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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.