Home / 208,537.40-312,300.96-144,315.58

Finding the Fourth Proportional to 208,537.40, 312,300.96 and 144,315.58

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Solution

The fourth proportional to 208,537.40, 312,300.96 and 144,315.58 is: 216,123.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,537.40 : 312,300.96 = 144,315.58 : x
  2. Step 2: Convert to fraction form
    208,537.40/312,300.96 = 144,315.58/x
  3. Step 3: Cross multiply
    208,537.40x = 312,300.96 × 144,315.58
  4. Step 4: Simplify right side
    208,537.40x = 45,069,894,176.96
  5. Step 5: Solve for x
    x = 45,069,894,176.96/208,537.40
  6. Step 6: Final answer
    x = 216,123.79

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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.