Home / 255,432.18-383,148.36-105,507.69

Finding the Fourth Proportional to 255,432.18, 383,148.36 and 105,507.69

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Solution

The fourth proportional to 255,432.18, 383,148.36 and 105,507.69 is: 158,261.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,432.18 : 383,148.36 = 105,507.69 : x
  2. Step 2: Convert to fraction form
    255,432.18/383,148.36 = 105,507.69/x
  3. Step 3: Cross multiply
    255,432.18x = 383,148.36 × 105,507.69
  4. Step 4: Simplify right side
    255,432.18x = 40,425,098,390.89
  5. Step 5: Solve for x
    x = 40,425,098,390.89/255,432.18
  6. Step 6: Final answer
    x = 158,261.57

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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.